<?xml version="1.0"?>
<!--Created by XmlShell on 10/4/2007 4:46:34 PM-->
<periodicTable>
	<group name="5B" number="5" commonName="transition metals" block="d">
		<element period="4" symbol="V" name="Vanadium" atomicNumber="23">
			<atomicMass units="amu">50.9415</atomicMass>
			<isotopeList>
				<isotope massNumber="47" natural="no">
					<exactMass units="amu">46.954907</exactMass>
					<abundance units="%">0</abundance>
					<radioactivity>
						<decay mode="ec"/>
						<halfLife units="m">32.6</halfLife>
					</radioactivity>
				</isotope>
				<isotope massNumber="48" natural="no">
					<exactMass units="amu">47.952254</exactMass>
					<abundance units="%">0</abundance>
					<radioactivity>
						<decay mode="ec"/>
						<halfLife units="d">15.98</halfLife>
					</radioactivity>
				</isotope>
				<isotope massNumber="49" natural="no">
					<exactMass units="amu">48.948517</exactMass>
					<abundance units="%">0</abundance>
					<radioactivity>
						<decay mode="ec"/>
						<halfLife units="d">337</halfLife>
					</radioactivity>
				</isotope>
				<isotope massNumber="50" natural="yes">
					<exactMass units="amu">49.9471609 </exactMass>
					<abundance units="%">0.250 </abundance>
					<radioactivity/>
				</isotope>
				<isotope massNumber="51" natural="yes">
					<exactMass units="amu">50.9439617 </exactMass>
					<abundance units="%">99.750 </abundance>
					<radioactivity/>
				</isotope>
				<isotope massNumber="52" natural="no">
					<exactMass units="amu">51.944780</exactMass>
					<abundance units="%">0</abundance>
					<radioactivity>
						<decay mode="beta-"/>
						<halfLife units="d">3.76</halfLife>
					</radioactivity>
				</isotope>
				<isotope massNumber="53" natural="no">
					<exactMass units="amu">52.944342</exactMass>
					<abundance units="%">0</abundance>
					<radioactivity>
						<decay mode="beta-"/>
						<halfLife units="m">1.61</halfLife>
					</radioactivity>
				</isotope>
			</isotopeList>
			<electronicProperties>
				<electronConfig>
					<level label="1s">2</level>
					<level label="2s">2</level>
					<level label="2p">6</level>
					<level label="3s">2</level>
					<level label="3p">6</level>
					<level label="4s">2</level>
					<level label="3d">3</level>
				</electronConfig>
				<electronAffinity units="kJ*mol-1">50.6</electronAffinity>
				<electronegativity scale="Pauling">1.63</electronegativity>
				<ionizationEnergies units="kJ*mol-1">
					<first>650.9</first>
					<second>1414</second>
					<third>2830</third>
					<fourth>4507</fourth>
					<fifth>6298.7</fifth>
					<sixth>12363</sixth>
					<seventh>14530</seventh>
					<eighth>16730</eighth>
				</ionizationEnergies>
				<atomicRadius units="pm">135</atomicRadius>
				<ionicRadius type="Pauling" oxidationState="+1">88</ionicRadius>
				<ionicRadius type="Pauling" oxidationState="+5">59</ionicRadius>
				<valence>5</valence>
				<oxidationStates>
					<state>+1</state>
					<state>+2</state>
					<state>+3</state>
					<state>+4</state>
					<state>+5</state>
				</oxidationStates>
			</electronicProperties>
			<macromolecularProperties standardState="s">
				<density units="kg*m-3">6110</density>
				<hardness scale="Moh">7</hardness>
				<meltingPoint units="K">2183</meltingPoint>
				<boilingPoint units="K">3680</boilingPoint>
				<criticalTemperature units="K">no data</criticalTemperature>
				<enthalpies units="kJ*mol-1">
					<fusion>22.8</fusion>
					<vaporization>453</vaporization>
					<atomization>515</atomization>
				</enthalpies>
				<entropy units="J*mol-1*K-1">28.9</entropy>
				<crystalStructure spaceGroup="Im-3m" cellType="bcc">
					<cellParams>
						<a units="pm">303</a>
						<b units="pm">303</b>
						<c units="pm">303</c>
						<alpha units="deg">90.000</alpha>
						<beta units="deg">90.000</beta>
						<gamma units="deg">90.000</gamma>
					</cellParams>
				</crystalStructure>
				<molarHeatCapacity units="J*mol-1*K-1">24.9</molarHeatCapacity>
			</macromolecularProperties>
		</element>
		<element period="5" symbol="Nb" name="Niobium" atomicNumber="41">
			<atomicMass units="amu">92.90638</atomicMass>
			<isotopeList>
				<isotope massNumber="89" natural="no">
					<exactMass units="amu">88.91349</exactMass>
					<abundance units="%">0</abundance>
					<radioactivity>
						<decay mode="ec"/>
						<halfLife units="h">1.1</halfLife>
					</radioactivity>
				</isotope>
				<isotope massNumber="90" natural="no">
					<exactMass units="amu">89.911263</exactMass>
					<abundance units="%">0</abundance>
					<radioactivity>
						<decay mode="ec"/>
						<halfLife units="h">14.6</halfLife>
					</radioactivity>
				</isotope>
				<isotope massNumber="91" natural="no">
					<exactMass units="amu">90.906989</exactMass>
					<abundance units="%">0</abundance>
					<radioactivity>
						<decay mode="ec"/>
						<halfLife units="years">700</halfLife>
					</radioactivity>
				</isotope>
				<isotope massNumber="92" natural="no">
					<exactMass units="amu">91.907192</exactMass>
					<abundance units="%">0</abundance>
					<radioactivity>
						<decay mode="ec"/>
						<halfLife units="years">3.7E7</halfLife>
					</radioactivity>
				</isotope>
				<isotope massNumber="93" natural="yes">
					<exactMass units="amu">92.9063772 </exactMass>
					<abundance units="%">100</abundance>
					<radioactivity/>
				</isotope>
				<isotope massNumber="94" natural="no">
					<exactMass units="amu">93.907282</exactMass>
					<abundance units="%">0</abundance>
					<radioactivity>
						<decay mode="beta-"/>
						<halfLife units="years">24000</halfLife>
					</radioactivity>
				</isotope>
				<isotope massNumber="95" natural="no">
					<exactMass units="amu">94.906834</exactMass>
					<abundance units="%">0</abundance>
					<radioactivity>
						<decay mode="beta-"/>
						<halfLife units="d">34.97</halfLife>
					</radioactivity>
				</isotope>
				<isotope massNumber="96" natural="no">
					<exactMass units="amu">95.908099</exactMass>
					<abundance units="%">0</abundance>
					<radioactivity>
						<decay mode="beta-"/>
						<halfLife units="h">23.4</halfLife>
					</radioactivity>
				</isotope>
				<isotope massNumber="97" natural="no">
					<exactMass units="amu">96.908096</exactMass>
					<abundance units="%">0</abundance>
					<radioactivity>
						<decay mode="beta-"/>
						<halfLife units="h">1.23</halfLife>
					</radioactivity>
				</isotope>
			</isotopeList>
			<electronicProperties>
				<electronConfig>
					<level label="1s">2</level>
					<level label="2s">2</level>
					<level label="2p">6</level>
					<level label="3s">2</level>
					<level label="3p">6</level>
					<level label="4s">2</level>
					<level label="3d">10</level>
					<level label="4p">6</level>
					<level label="5s">1</level>
					<level label="4d">4</level>
				</electronConfig>
				<electronAffinity units="kJ*mol-1">86.1</electronAffinity>
				<electronegativity scale="Pauling">1.6</electronegativity>
				<ionizationEnergies units="kJ*mol-1">
					<first>652.1</first>
					<second>1380</second>
					<third>2416</third>
					<fourth>3700</fourth>
					<fifth>4877</fifth>
					<sixth>9847</sixth>
					<seventh>12100</seventh>
				</ionizationEnergies>
				<atomicRadius units="pm">145</atomicRadius>
				<ionicRadius type="Pauling" oxidationState="+1">100</ionicRadius>
				<ionicRadius type="Pauling" oxidationState="+5">70</ionicRadius>
				<valence>5</valence>
				<oxidationStates>
					<state>+1</state>
					<state>+3</state>
					<state>+4</state>
					<state>+5</state>
				</oxidationStates>
			</electronicProperties>
			<macromolecularProperties standardState="s">
				<density units="kg*m-3">8570</density>
				<hardness scale="Moh">6.0</hardness>
				<meltingPoint units="K">2750</meltingPoint>
				<boilingPoint units="K">5017</boilingPoint>
				<criticalTemperature units="K">no data</criticalTemperature>
				<enthalpies units="kJ*mol-1">
					<fusion>26.8</fusion>
					<vaporization>690</vaporization>
					<atomization>733</atomization>
				</enthalpies>
				<entropy units="J*mol-1*K-1">36.4</entropy>
				<crystalStructure spaceGroup="Im-3m" cellType="bcc">
					<cellParams>
						<a units="pm">330.04</a>
						<b units="pm">330.04</b>
						<c units="pm">330.04</c>
						<alpha units="deg">90.000</alpha>
						<beta units="deg">90.000</beta>
						<gamma units="deg">90.000</gamma>
					</cellParams>
				</crystalStructure>
				<molarHeatCapacity units="J*mol-1*K-1">24.6</molarHeatCapacity>
			</macromolecularProperties>
		</element>
		<element period="6" symbol="Ta" name="Tantalum" atomicNumber="73">
			<atomicMass units="amu">180.94788 </atomicMass>
			<isotopeList>
				<isotope massNumber="177" natural="no">
					<exactMass units="amu">176.944472</exactMass>
					<abundance units="%">0</abundance>
					<radioactivity>
						<halfLife units="d">2.356
							<decay mode="ec"/>
						</halfLife>
					</radioactivity>
				</isotope>
				<isotope massNumber="178" natural="no">
					<exactMass units="amu">177.9458</exactMass>
					<abundance units="%">0</abundance>
					<radioactivity>
						<decay mode="ec"/>
						<halfLife units="m">9.29</halfLife>
					</radioactivity>
				</isotope>
				<isotope massNumber="179" natural="no">
					<exactMass units="amu">178.94593</exactMass>
					<abundance units="%">0</abundance>
					<radioactivity>
						<decay mode="ec"/>
						<halfLife units="years">1.8</halfLife>
					</radioactivity>
				</isotope>
				<isotope massNumber="180" natural="no">
					<exactMass units="amu">179.947466</exactMass>
					<abundance units="%">0</abundance>
					<radioactivity>
						<decay mode="ec"/>
						<decay mode="beta-"/>
						<halfLife units="h">8.15</halfLife>
					</radioactivity>
				</isotope>
				<isotope massNumber="180" natural="yes">
					<exactMass units="amu">179.947462 </exactMass>
					<abundance units="%">.012</abundance>
					<radioactivity/>
				</isotope>
				<isotope massNumber="181" natural="yes">
					<exactMass units="amu">180.947992 </exactMass>
					<abundance units="%">99.988</abundance>
					<radioactivity/>
				</isotope>
				<isotope massNumber="182" natural="no">
					<exactMass units="amu">181.950152</exactMass>
					<abundance units="%">0</abundance>
					<radioactivity>
						<decay mode="beta-"/>
						<halfLife units="d">114.43</halfLife>
					</radioactivity>
				</isotope>
				<isotope massNumber="183" natural="no">
					<exactMass units="amu">182.951373</exactMass>
					<abundance units="%">0</abundance>
					<radioactivity>
						<decay mode="beta-"/>
						<halfLife units="d">5.1</halfLife>
					</radioactivity>
				</isotope>
			</isotopeList>
			<electronicProperties>
				<electronConfig>
					<level label="1s">2</level>
					<level label="2s">2</level>
					<level label="2p">6</level>
					<level label="3s">2</level>
					<level label="3p">6</level>
					<level label="4s">2</level>
					<level label="3d">10</level>
					<level label="4p">6</level>
					<level label="5s">2</level>
					<level label="4d">10</level>
					<level label="5p">6</level>
					<level label="6s">2</level>
					<level label="4f">14</level>
					<level label="5d">3</level>
				</electronConfig>
				<electronAffinity units="kJ*mol-1">31</electronAffinity>
				<electronegativity scale="Pauling">1.5</electronegativity>
				<ionizationEnergies units="kJ*mol-1">
					<first>761</first>
					<second>1500</second>
				</ionizationEnergies>
				<atomicRadius units="pm">145</atomicRadius>
				<ionicRadius type="Pauling" oxidationState="+1">no information</ionicRadius>
				<valence>5</valence>
				<oxidationStates>
					<state>+1</state>
					<state>+3</state>
					<state>+4</state>
					<state>+5</state>
				</oxidationStates>
			</electronicProperties>
			<macromolecularProperties standardState="s">
				<density units="kg*m-3">16650</density>
				<hardness scale="Moh">6.5</hardness>
				<meltingPoint units="K">3290</meltingPoint>
				<boilingPoint units="K">5731</boilingPoint>
				<criticalTemperature units="K">no data</criticalTemperature>
				<enthalpies units="kJ*mol-1">
					<fusion>36</fusion>
					<vaporization>735</vaporization>
					<atomization>782</atomization>
				</enthalpies>
				<entropy units="J*mol-1*K-1">41.5</entropy>
				<crystalStructure spaceGroup="Im-3m" cellType="bcc">
					<cellParams>
						<a units="pm">330.13</a>
						<b units="pm">330.13</b>
						<c units="pm">330.13</c>
						<alpha units="deg">90.000</alpha>
						<beta units="deg">90.000</beta>
						<gamma units="deg">90.000</gamma>
					</cellParams>
				</crystalStructure>
				<molarHeatCapacity units="J*mol-1*K-1">25.4</molarHeatCapacity>
			</macromolecularProperties>
		</element>
		<element period="7" symbol="Db" name="Dubnium" atomicNumber="105">
			<atomicMass units="amu">262</atomicMass>
			<isotopeList>
				<isotope massNumber="255" natural="no">
					<exactMass units="amu">255.1074</exactMass>
					<abundance units="%">0</abundance>
					<radioactivity>
						<halfLife units="s">1.6
							<decay mode="alpha"/>
						</halfLife>
					</radioactivity>
				</isotope>
				<isotope massNumber="256" natural="no">
					<exactMass units="amu">256.1081</exactMass>
					<abundance units="%">0</abundance>
					<radioactivity>
						<decay mode="ec"/>
						<decay mode="alpha"/>
						<halfLife units="s">2.6</halfLife>
					</radioactivity>
				</isotope>
				<isotope massNumber="257" natural="no">
					<exactMass units="amu">257.1079</exactMass>
					<abundance units="%">0</abundance>
					<radioactivity>
						<decay mode="ec"/>
						<decay mode="alpha"/>
						<halfLife units="s">1.5</halfLife>
					</radioactivity>
				</isotope>
				<isotope massNumber="258" natural="no">
					<exactMass units="amu">258.1093</exactMass>
					<abundance units="%">0</abundance>
					<radioactivity>
						<decay mode="ec"/>
						<decay mode="alpha"/>
						<halfLife units="s">4.2</halfLife>
					</radioactivity>
				</isotope>
				<isotope massNumber="259" natural="no">
					<exactMass units="amu">259.1097</exactMass>
					<abundance units="%">0</abundance>
					<radioactivity>
						<decay mode="alpha"/>
						<halfLife units="s">1.2</halfLife>
					</radioactivity>
				</isotope>
				<isotope massNumber="260" natural="no">
					<exactMass units="amu">260.1114</exactMass>
					<abundance units="%">0</abundance>
					<radioactivity>
						<decay mode="alpha"/>
						<decay mode="ec"/>
						<halfLife units="s">1.5</halfLife>
					</radioactivity>
				</isotope>
				<isotope massNumber="261" natural="no">
					<exactMass units="amu">261.1121</exactMass>
					<abundance units="%">0</abundance>
					<radioactivity>
						<decay mode="alpha"/>
						<halfLife units="s">1.8</halfLife>
					</radioactivity>
				</isotope>
				<isotope massNumber="262" natural="no">
					<exactMass units="amu">262.11376 </exactMass>
					<abundance units="%">0</abundance>
					<radioactivity>
						<decay mode="alpha"/>
						<decay mode="ec"/>
						<halfLife units="s">34</halfLife>
					</radioactivity>
				</isotope>
				<isotope massNumber="263" natural="no">
					<exactMass units="amu">263.1153</exactMass>
					<abundance units="%">0</abundance>
					<radioactivity>
						<decay mode="alpha"/>
						<halfLife units="s">30</halfLife>
					</radioactivity>
				</isotope>
			</isotopeList>
			<electronicProperties>
				<electronConfig>
					<level label="1s">2</level>
					<level label="2s">2</level>
					<level label="2p">6</level>
					<level label="3s">2</level>
					<level label="3p">6</level>
					<level label="4s">2</level>
					<level label="3d">10</level>
					<level label="4p">6</level>
					<level label="5s">2</level>
					<level label="4d">10</level>
					<level label="5p">6</level>
					<level label="6s">2</level>
					<level label="4f">14</level>
					<level label="5d">10</level>
					<level label="6p">6</level>
					<level label="7s">2</level>
					<level label="5f">14</level>
					<level label="6d">3</level>
				</electronConfig>
				<electronAffinity units="kJ*mol-1">no data</electronAffinity>
				<electronegativity scale="Pauling">no data</electronegativity>
				<ionizationEnergies units="kJ*mol-1"/>
				<atomicRadius units="pm">no data</atomicRadius>
				<ionicRadius type="Pauling" oxidationState="no data">no information</ionicRadius>
				<valence>5</valence>
				<oxidationStates/>
			</electronicProperties>
			<macromolecularProperties standardState="s">
				<density units="kg*m-3">no data</density>
				<hardness scale="Moh">no data</hardness>
				<meltingPoint units="K">no data</meltingPoint>
				<boilingPoint units="K">no data</boilingPoint>
				<criticalTemperature units="K">no data</criticalTemperature>
				<enthalpies units="kJ*mol-1">
					<fusion>no data</fusion>
					<vaporization>no data</vaporization>
					<atomization>no data</atomization>
				</enthalpies>
				<entropy units="J*mol-1*K-1">no data</entropy>
				<crystalStructure spaceGroup="no data" cellType="no data">
					<cellParams/>
				</crystalStructure>
				<molarHeatCapacity units="J*mol-1*K-1">no data</molarHeatCapacity>
			</macromolecularProperties>
		</element>
	</group>
	<group name="6B" number="6" commonName="transition metals" block="d">
		<element period="4" symbol="Cr" name="Chromium" atomicNumber="24">
			<atomicMass units="amu">51.9961 </atomicMass>
			<isotopeList>
				<isotope massNumber="48" natural="no">
					<exactMass units="amu">47.95404</exactMass>
					<abundance units="%">0</abundance>
					<radioactivity>
						<decay mode="ec"/>
						<halfLife units="h">21.6</halfLife>
					</radioactivity>
				</isotope>
				<isotope massNumber="49" natural="no">
					<exactMass units="amu">48.951341</exactMass>
					<abundance units="%">0</abundance>
					<radioactivity>
						<decay mode="ec"/>
						<halfLife units="m">42.3</halfLife>
					</radioactivity>
				</isotope>
				<isotope massNumber="50" natural="yes">
					<exactMass units="amu">49.9460464 </exactMass>
					<abundance units="%">4.345</abundance>
					<radioactivity/>
				</isotope>
				<isotope massNumber="51" natural="no">
					<exactMass units="amu">50.944772</exactMass>
					<abundance units="%">0</abundance>
					<radioactivity>
						<decay mode="ec"/>
						<halfLife units="d">27.7</halfLife>
					</radioactivity>
				</isotope>
				<isotope massNumber="52" natural="yes">
					<exactMass units="amu">51.9405098 </exactMass>
					<abundance units="%">83.789 </abundance>
					<radioactivity/>
				</isotope>
				<isotope massNumber="53" natural="yes">
					<exactMass units="amu">52.9406513 </exactMass>
					<abundance units="%">9.501</abundance>
					<radioactivity/>
				</isotope>
				<isotope massNumber="54" natural="yes">
					<exactMass units="amu">53.9388825 </exactMass>
					<abundance units="%">2.365</abundance>
					<radioactivity/>
				</isotope>
				<isotope massNumber="55" natural="no">
					<exactMass units="amu">54.940844</exactMass>
					<abundance units="%">0</abundance>
					<radioactivity>
						<decay mode="beta-"/>
						<halfLife units="m">3.497</halfLife>
					</radioactivity>
				</isotope>
				<isotope massNumber="56" natural="no">
					<exactMass units="amu">55.94065</exactMass>
					<abundance units="%">0</abundance>
					<radioactivity>
						<decay mode="beta-"/>
						<halfLife units="m">5.9</halfLife>
					</radioactivity>
				</isotope>
			</isotopeList>
			<electronicProperties>
				<electronConfig>
					<level label="1s">2</level>
					<level label="2s">2</level>
					<level label="2p">6</level>
					<level label="3s">2</level>
					<level label="3p">6</level>
					<level label="4s">1</level>
					<level label="3d">5</level>
				</electronConfig>
				<electronAffinity units="kJ*mol-1">64.3</electronAffinity>
				<electronegativity scale="Pauling">1.66</electronegativity>
				<ionizationEnergies units="kJ*mol-1">
					<first>652.9</first>
					<second>1590.6</second>
					<third>2987</third>
					<fourth>4743</fourth>
					<fifth>6702</fifth>
					<sixth>8744.9</sixth>
					<seventh>15455</seventh>
					<eighth>17820</eighth>
				</ionizationEnergies>
				<atomicRadius units="pm">140</atomicRadius>
				<ionicRadius type="Pauling" oxidationState="+1">81</ionicRadius>
				<ionicRadius type="Pauling" oxidationState="+6">52</ionicRadius>
				<valence>6</valence>
				<oxidationStates>
					<state>+1</state>
					<state>+2</state>
					<state>+3</state>
					<state>+4</state>
					<state>+5</state>
					<state>+6</state>
				</oxidationStates>
			</electronicProperties>
			<macromolecularProperties standardState="s">
				<density units="kg*m-3">7140</density>
				<hardness scale="Moh">8.5</hardness>
				<meltingPoint units="K">2180</meltingPoint>
				<boilingPoint units="K">2944</boilingPoint>
				<criticalTemperature units="K">no data</criticalTemperature>
				<enthalpies units="kJ*mol-1">
					<fusion>20.5</fusion>
					<vaporization>339</vaporization>
					<atomization>397</atomization>
				</enthalpies>
				<entropy units="J*mol-1*K-1">23.8</entropy>
				<crystalStructure spaceGroup="Im-3m" cellType="bcc">
					<cellParams>
						<a units="pm">291</a>
						<b units="pm">291</b>
						<c units="pm">291</c>
						<alpha units="deg">90.000</alpha>
						<beta units="deg">90.000</beta>
						<gamma units="deg">90.000</gamma>
					</cellParams>
				</crystalStructure>
				<molarHeatCapacity units="J*mol-1*K-1">23.3</molarHeatCapacity>
			</macromolecularProperties>
		</element>
		<element period="5" symbol="Mo" name="Molybdenum" atomicNumber="42">
			<atomicMass units="amu">95.94</atomicMass>
			<isotopeList>
				<isotope massNumber="90" natural="no">
					<exactMass units="amu">89.91394</exactMass>
					<abundance units="%">0</abundance>
					<radioactivity>
						<decay mode="ec"/>
						<halfLife units="h">5.7</halfLife>
					</radioactivity>
				</isotope>
				<isotope massNumber="91" natural="no">
					<exactMass units="amu">90.91175</exactMass>
					<abundance units="%">0</abundance>
					<radioactivity>
						<decay mode="ec"/>
						<halfLife units="m">15.5</halfLife>
					</radioactivity>
				</isotope>
				<isotope massNumber="92" natural="yes">
					<exactMass units="amu">91.906809 </exactMass>
					<abundance units="%">14.84</abundance>
					<radioactivity/>
				</isotope>
				<isotope massNumber="93" natural="no">
					<exactMass units="amu">92.906811</exactMass>
					<abundance units="%">0</abundance>
					<radioactivity>
						<decay mode="ec"/>
						<halfLife units="years">3500</halfLife>
					</radioactivity>
				</isotope>
				<isotope massNumber="94" natural="yes">
					<exactMass units="amu">93.9050853 </exactMass>
					<abundance units="%">9.25</abundance>
					<radioactivity/>
				</isotope>
				<isotope massNumber="95" natural="yes">
					<exactMass units="amu">94.9058411 </exactMass>
					<abundance units="%">15.92</abundance>
					<radioactivity/>
				</isotope>
				<isotope massNumber="96" natural="yes">
					<exactMass units="amu">95.9046785 </exactMass>
					<abundance units="%">16.68</abundance>
					<radioactivity/>
				</isotope>
				<isotope massNumber="97" natural="yes">
					<exactMass units="amu">96.9060205 </exactMass>
					<abundance units="%">9.55</abundance>
					<radioactivity/>
				</isotope>
				<isotope massNumber="98" natural="yes">
					<exactMass units="amu">97.9054073 </exactMass>
					<abundance units="%">24.13</abundance>
					<radioactivity/>
				</isotope>
				<isotope massNumber="99" natural="no">
					<exactMass units="amu">98.907711</exactMass>
					<abundance units="%">0</abundance>
					<radioactivity>
						<decay mode="beta-"/>
						<halfLife units="d">2.7476</halfLife>
					</radioactivity>
				</isotope>
				<isotope massNumber="100" natural="yes">
					<exactMass units="amu">99.907477 </exactMass>
					<abundance units="%">9.63</abundance>
					<radioactivity/>
				</isotope>
			</isotopeList>
			<electronicProperties>
				<electronConfig>
					<level label="1s">2</level>
					<level label="2s">2</level>
					<level label="2p">6</level>
					<level label="3s">2</level>
					<level label="3p">6</level>
					<level label="4s">2</level>
					<level label="3d">10</level>
					<level label="4p">6</level>
					<level label="5s">1</level>
					<level label="4d">5</level>
				</electronConfig>
				<electronAffinity units="kJ*mol-1">71.9</electronAffinity>
				<electronegativity scale="Pauling">2.16</electronegativity>
				<ionizationEnergies units="kJ*mol-1">
					<first>684.3</first>
					<second>1560</second>
					<third>2618</third>
					<fourth>4480</fourth>
					<fifth>5257</fifth>
					<sixth>6640.8</sixth>
					<seventh>12125</seventh>
					<eighth>13860</eighth>
				</ionizationEnergies>
				<atomicRadius units="pm">145</atomicRadius>
				<ionicRadius type="Pauling" oxidationState="+1">93</ionicRadius>
				<ionicRadius type="Pauling" oxidationState="+6">62</ionicRadius>
				<valence>6</valence>
				<oxidationStates>
					<state>+1</state>
					<state>+3</state>
					<state>+4</state>
					<state>+5</state>
					<state>+6</state>
				</oxidationStates>
			</electronicProperties>
			<macromolecularProperties standardState="s">
				<density units="kg*m-3">10280</density>
				<hardness scale="Moh">5.5</hardness>
				<meltingPoint units="K">2896</meltingPoint>
				<boilingPoint units="K">4912</boilingPoint>
				<criticalTemperature units="K">no data</criticalTemperature>
				<enthalpies units="kJ*mol-1">
					<fusion>36</fusion>
					<vaporization>600</vaporization>
					<atomization>659</atomization>
				</enthalpies>
				<entropy units="J*mol-1*K-1">28.7</entropy>
				<crystalStructure spaceGroup="Im-3m" cellType="bcc">
					<cellParams>
						<a units="pm">314.7</a>
						<b units="pm">314.7</b>
						<c units="pm">314.7</c>
						<alpha units="deg">90.000</alpha>
						<beta units="deg">90.000</beta>
						<gamma units="deg">90.000</gamma>
					</cellParams>
				</crystalStructure>
				<molarHeatCapacity units="J*mol-1*K-1">24.1</molarHeatCapacity>
			</macromolecularProperties>
		</element>
		<element period="6" symbol="W" name="Tungsten" atomicNumber="74">
			<atomicMass units="amu">183.84</atomicMass>
			<isotopeList>
				<isotope massNumber="178" natural="no">
					<exactMass units="amu">177.9459</exactMass>
					<abundance units="%">0</abundance>
					<radioactivity>
						<decay mode="ec"/>
						<halfLife units="d">21.6</halfLife>
					</radioactivity>
				</isotope>
				<isotope massNumber="179" natural="no">
					<exactMass units="amu">178.94707</exactMass>
					<abundance units="%">0</abundance>
					<radioactivity>
						<decay mode="ec"/>
						<halfLife units="m">38</halfLife>
					</radioactivity>
				</isotope>
				<isotope massNumber="180" natural="yes">
					<exactMass units="amu">179.946701 </exactMass>
					<abundance units="%">.12</abundance>
					<radioactivity/>
				</isotope>
				<isotope massNumber="181" natural="no">
					<exactMass units="amu">180.94820</exactMass>
					<abundance units="%">0</abundance>
					<radioactivity>
						<decay mode="ec"/>
						<halfLife units="d">121.2</halfLife>
					</radioactivity>
				</isotope>
				<isotope massNumber="182" natural="yes">
					<exactMass units="amu">181.948202 </exactMass>
					<abundance units="%">26.50</abundance>
					<radioactivity/>
				</isotope>
				<isotope massNumber="183" natural="yes">
					<exactMass units="amu">182.950220 </exactMass>
					<abundance units="%">14.31</abundance>
					<radioactivity/>
				</isotope>
				<isotope massNumber="184" natural="yes">
					<exactMass units="amu">183.950928 </exactMass>
					<abundance units="%">30.64</abundance>
					<radioactivity/>
				</isotope>
				<isotope massNumber="185" natural="no">
					<exactMass units="amu">184.953420</exactMass>
					<abundance units="%">0</abundance>
					<radioactivity>
						<decay mode="beta-"/>
						<halfLife units="d">74.8</halfLife>
					</radioactivity>
				</isotope>
				<isotope massNumber="186" natural="yes">
					<exactMass units="amu">185.954357 </exactMass>
					<abundance units="%">28.43</abundance>
					<radioactivity/>
				</isotope>
				<isotope massNumber="187" natural="no">
					<exactMass units="amu">186.957158</exactMass>
					<abundance units="%">0</abundance>
					<radioactivity>
						<decay mode="beta-"/>
						<halfLife units="h">23.9</halfLife>
					</radioactivity>
				</isotope>
				<isotope massNumber="188" natural="no">
					<exactMass units="amu">187.958487</exactMass>
					<abundance units="%">0</abundance>
					<radioactivity>
						<decay mode="beta-"/>
						<halfLife units="d">69.4</halfLife>
					</radioactivity>
				</isotope>
			</isotopeList>
			<electronicProperties>
				<electronConfig>
					<level label="1s">2</level>
					<level label="2s">2</level>
					<level label="2p">6</level>
					<level label="3s">2</level>
					<level label="3p">6</level>
					<level label="4s">2</level>
					<level label="3d">10</level>
					<level label="4p">6</level>
					<level label="5s">2</level>
					<level label="4d">10</level>
					<level label="5p">6</level>
					<level label="6s">2</level>
					<level label="4f">14</level>
					<level label="5d">4</level>
				</electronConfig>
				<electronAffinity units="kJ*mol-1">78.6</electronAffinity>
				<electronegativity scale="Pauling">2.36</electronegativity>
				<ionizationEnergies units="kJ*mol-1">
					<first>1700</first>
					<second>770</second>
				</ionizationEnergies>
				<atomicRadius units="pm">135</atomicRadius>
				<ionicRadius type="Pauling" oxidationState="+1">no information</ionicRadius>
				<valence>6</valence>
				<oxidationStates>
					<state>+1</state>
					<state>+2</state>
					<state>+3</state>
					<state>+4</state>
					<state>+5</state>
					<state>+6</state>
				</oxidationStates>
			</electronicProperties>
			<macromolecularProperties standardState="s">
				<density units="kg*m-3">19250</density>
				<hardness scale="Moh">7.5</hardness>
				<meltingPoint units="K">3695</meltingPoint>
				<boilingPoint units="K">5828</boilingPoint>
				<criticalTemperature units="K">no data</criticalTemperature>
				<enthalpies units="kJ*mol-1">
					<fusion>35</fusion>
					<vaporization>800</vaporization>
					<atomization>860</atomization>
				</enthalpies>
				<entropy units="J*mol-1*K-1">32.6</entropy>
				<crystalStructure spaceGroup="Im-3m" cellType="bcc">
					<cellParams>
						<a units="pm">316.52</a>
						<b units="pm">316.52</b>
						<c units="pm">316.52</c>
						<alpha units="deg">90.000</alpha>
						<beta units="deg">90.000</beta>
						<gamma units="deg">90.000</gamma>
					</cellParams>
				</crystalStructure>
				<molarHeatCapacity units="J*mol-1*K-1">24.3</molarHeatCapacity>
			</macromolecularProperties>
		</element>
		<element period="7" symbol="Sg" name="Seaborgium" atomicNumber="106">
			<atomicMass units="amu">266</atomicMass>
			<isotopeList>
				<isotope massNumber="258" natural="no">
					<exactMass units="amu">258.1132</exactMass>
					<abundance units="%">0</abundance>
					<radioactivity>
						<decay mode="alpha"/>
						<halfLife units="">.0029</halfLife>
					</radioactivity>
				</isotope>
				<isotope massNumber="259" natural="no">
					<exactMass units="amu">259.1147</exactMass>
					<abundance units="%">0</abundance>
					<radioactivity>
						<decay mode="alpha"/>
						<halfLife units="s">.9</halfLife>
					</radioactivity>
				</isotope>
				<isotope massNumber="260" natural="no">
					<exactMass units="amu">260.1144</exactMass>
					<abundance units="%">0</abundance>
					<radioactivity>
						<decay mode="alpha"/>
						<halfLife units="s">.0036</halfLife>
					</radioactivity>
				</isotope>
				<isotope massNumber="261" natural="no">
					<exactMass units="amu">261.1162</exactMass>
					<abundance units="%">0</abundance>
					<radioactivity>
						<decay mode="alpha"/>
						<halfLife units="s">.23</halfLife>
					</radioactivity>
				</isotope>
				<isotope massNumber="262" natural="no">
					<exactMass units="amu">262.1164 </exactMass>
					<abundance units="%">0</abundance>
					<radioactivity/>
				</isotope>
				<isotope massNumber="263" natural="no">
					<exactMass units="amu">263.11822</exactMass>
					<abundance units="%">0</abundance>
					<radioactivity>
						<decay mode="alpha"/>
						<halfLife units="s">.8</halfLife>
					</radioactivity>
				</isotope>
				<isotope massNumber="264" natural="no">
					<exactMass units="amu">263.11822</exactMass>
					<abundance units="%">0</abundance>
					<radioactivity/>
				</isotope>
				<isotope massNumber="265" natural="no">
					<exactMass units="amu">265.1211</exactMass>
					<abundance units="%">0</abundance>
					<radioactivity>
						<decay mode="alpha"/>
						<halfLife units="s">16</halfLife>
					</radioactivity>
				</isotope>
				<isotope massNumber="266" natural="no">
					<exactMass units="amu">266.1219</exactMass>
					<abundance units="%">0</abundance>
					<radioactivity>
						<decay mode="alpha"/>
						<halfLife units="s">21</halfLife>
					</radioactivity>
				</isotope>
			</isotopeList>
			<electronicProperties>
				<electronConfig>
					<level label="1s">2</level>
					<level label="2s">2</level>
					<level label="2p">6</level>
					<level label="3s">2</level>
					<level label="3p">6</level>
					<level label="4s">2</level>
					<level label="3d">10</level>
					<level label="4p">6</level>
					<level label="5s">2</level>
					<level label="4d">10</level>
					<level label="5p">6</level>
					<level label="6s">2</level>
					<level label="4f">14</level>
					<level label="5d">10</level>
					<level label="6p">6</level>
					<level label="7s">2</level>
					<level label="5f">14</level>
					<level label="6d">4</level>
				</electronConfig>
				<electronAffinity units="kJ*mol-1">no data</electronAffinity>
				<electronegativity scale="Pauling">no data</electronegativity>
				<ionizationEnergies units="kJ*mol-1"/>
				<atomicRadius units="pm">no data</atomicRadius>
				<ionicRadius type="Pauling" oxidationState="no data">no information</ionicRadius>
				<valence>6</valence>
				<oxidationStates/>
			</electronicProperties>
			<macromolecularProperties standardState="s">
				<density units="kg*m-3">no data</density>
				<hardness scale="Moh">no data</hardness>
				<meltingPoint units="K">no data</meltingPoint>
				<boilingPoint units="K">no data</boilingPoint>
				<criticalTemperature units="K">no data</criticalTemperature>
				<enthalpies units="kJ*mol-1">
					<fusion>no data</fusion>
					<vaporization>no data</vaporization>
					<atomization>no data</atomization>
				</enthalpies>
				<entropy units="J*mol-1*K-1">no data</entropy>
				<crystalStructure spaceGroup="no data" cellType="no data">
					<cellParams/>
				</crystalStructure>
				<molarHeatCapacity units="J*mol-1*K-1">no data</molarHeatCapacity>
			</macromolecularProperties>
		</element>
	</group>
</periodicTable>
