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Template:Infobox californium - Revision history
2026-10-18T06:20:30Z
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<p><b>New page</b></p><div>{{Infobox element<br />
|engvar={{{engvar|}}}<br />
|number=98<br />
|symbol=Cf<br />
|name=californium<br />
|abundance=<br />
|abundance in earth's crust=<br />
|abundance in oceans=<br />
|abundance in solar system=<br />
|left=[[berkelium]]<br />
|right=[[einsteinium]]<br />
|above=[[dysprosium|Dy]]<br />
|below=(Upb)<br />
|appearance=silvery<br />
|image name=Californium.jpg<br />
|mass number=251{{sfn|CRC|2006|p=4.56}}<br />
|electrons per shell=2, 8, 18, 32, 28, 8, 2<br />
|phase=<br />
|Mohs hardness=3–4<br />
|Mohs hardness ref={{sfn|CRC|1991|p=254}}<br />
|density gpcm3nrt=15.1<br />
|density gpcm3nrt ref={{sfn|CRC|2006|p=4.56}}<br />
|melting point K=1173<!-- {{sfn|Greenwood|Earnshaw|1997|p=1263}} --><br />
|melting point C=900<br />
|melting point ref={{sfn|CRC|2006|p=4.56}}<br />
|melting point F=1652<br />
|boiling point K=1743<br />
|boiling point comment=''(estimation)''<ref>{{cite book|author1=Joseph Jacob Katz|author2=Glenn Theodore Seaborg|author3=Lester R. Morss|title=The Chemistry of the actinide elements|url=https://books.google.com/books?id=UuPvAAAAMAAJ|access-date=11 July 2011|year=1986|publisher=Chapman and Hall|isbn=9780412273704|page=1038}}</ref><br />
|boiling point C=1470<br />
|boiling point F=2678<br />
|crystal structure=double hexagonal close packed<br />
|crystal structure ref=<br />
|crystal structure comment=<br />
|electronegativity=1.3<br />
|electronegativity ref={{sfn|Emsley|1998|p=50}}<br />
|number of ionization energies=1<br />
|ionization energy 1=608<br />
|ionization energy 1 ref={{sfn|CRC|2006|p=10.204}}<br />
|CAS number=7440-71-3<br />
|CAS number ref={{sfn|CRC|2006|p=4.56}}<br />
|magnetic susceptibility=<br />
|magnetic susceptibility ref=<br />
|isotopes=<br />
{{infobox element/isotopes decay2 | mn=248 | sym=Cf<br />
|na=[[synthetic radioisotope|syn]] | hl=333.5&nbsp;d<br />
|dm1=[[alpha emission|α]] (100%) | de1=6.369 | link1=curium-244 | pn1=244 | ps1=Cm<br />
|dm2=[[spontaneous fission|SF]]&nbsp;(2.9×10<sup>−3</sup>%) | de2=0.0029 | pn2= | ps2=–}}<br />
{{infobox element/isotopes decay2 | mn=249 | sym=Cf<br />
|na=syn | hl=351&nbsp;y<br />
|dm1=α (100%)| de1=6.295 | link1=curium-245 | pn1=245 | ps1=Cm<br />
|dm2=SF&nbsp;(5.0×10<sup>−7</sup>%)| de2=4.4×10<sup>−7</sup> | pn2= | ps2=–}}<br />
{{infobox element/isotopes decay2 | mn=250 | sym=Cf<br />
|na=syn | hl=13.08&nbsp;y<br />
|dm1=α (99.92%)| de1=6.129 | link1=curium-246 | pn1=246 | ps1=Cm<br />
|dm2=SF (0.08%)| de2=0.077 | pn2= | ps2=–}}<br />
{{infobox element/isotopes decay | mn=251 | sym=Cf<br />
|na=syn | hl=898&nbsp;y<br />
|dm=α | de=6.172 | link1=curium-247 | pn=247 | ps=Cm}}<br />
{{infobox element/isotopes decay2 | mn=252 | sym=Cf<br />
|na=syn | hl=2.645&nbsp;y<br />
|dm1=α (96.91%)| de1=6.217 | link1=curium-248 | pn1=248 | ps1=Cm<br />
|dm2=SF (3.09%)| de2=– | pn2= | ps2=–}}<br />
{{infobox element/isotopes decay2 | mn=253 | sym=Cf<br />
|na=syn | hl=17.81&nbsp;d<br />
|dm1=[[beta emission|β<sup>−</sup>]] (99.69%) | de1=0.29 | link1=einsteinium-253 | pn1=253 | ps1=Es<br />
|dm2=α (0.31%)| de2=6.126 | link2=curium-249 | pn2=249 | ps2=Cm}}<br />
{{infobox element/isotopes decay2 | mn=254 | sym=Cf<br />
|na=syn | hl=60.5&nbsp;d<br />
|dm1=SF (99.69%) | de1=– | pn1= | ps1=–<br />
|dm2=α (0.31%) | de2=5.930 | link2=curium-250 | pn2=250 | ps2=Cm}}<br />
<br />
|isotopes ref={{sfn|CRC|2006|p=11.196}}<ref name="NNDC2008">{{cite web<br />
|url = http://www.nndc.bnl.gov/chart/<br />
|editor = Sonzogni, Alejandro A. (Database Manager)<br />
|title = Chart of Nuclides<br />
|publisher = National Nuclear Data Center, Brookhaven National Laboratory<br />
|access-date = 1 March 2010<br />
|date = 2008}}</ref><br />
<br />
|naming=after [[California]], where it was discovered<br />
|discovered by=[[Lawrence Berkeley National Laboratory]]<br />
|discovery date=1950<br />
|QID=Q1888<br />
}}<!--<br />
<br />
--><noinclude><br />
{{Infobox element/element navigation|symbol=Cf}}<br />
{{Template reference list}}<br />
{{documentation|1=Template:Infobox element/doc}}<br />
</noinclude></div>
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