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Cerium

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{{element
 
{{element
 
| name = Cerium
 
| name = Cerium
| image =
 
 
| symbol = Ce
 
| symbol = Ce
 
| number = 58
 
| number = 58
 
| mass = 140.12
 
| mass = 140.12
 
}}
 
}}
'''Cerium''' (symbol '''Ce''') is a [[chemistry|chemical]] [[element]], [[atom]]ic number 58 on the [[periodic table]].
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'''Cerium''' (symbol '''Ce''') is a [[chemistry|chemical]] [[element]], a higly reactive [[metal]] with [[atom]]ic number 58 on the [[periodic table]]. Cerium has an atomic mass of 140.12, and was discovered by [[Human]]s for the first time on [[Earth]]'s [[Europe]]an continent in the [[year]] [[1803]]. ({{r|TOS|Star Fleet Medical Reference Manual}})
 
==Characteristics and history==
 
Cerium has an atomic mass of 140.12, and was discovered by [[Human]]s on [[Earth]]'s [[Europe]]an continent for the first time by [[scientist]]s working in [[Sweden]] and [[Germany]] in the [[year]] [[1803]]. This highly reactive [[metal]] is part of the [[lanthanide]] series of heavy elements. ({{r|ST|Star Fleet Medical Reference Manual}})
 
   
 
One of the [[Federation]]'s largest sources of cerium in the [[23rd century]] was the [[mining]] [[colony]] on [[planet]] [[Janus VI]]. ({{e|TOS|The Devil in the Dark}})
 
One of the [[Federation]]'s largest sources of cerium in the [[23rd century]] was the [[mining]] [[colony]] on [[planet]] [[Janus VI]]. ({{e|TOS|The Devil in the Dark}})
   
==Appendices==
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==External links==
===References===
 
* {{e|TNG|Manhunt}}
 
* {{r|ST|Star Fleet Medical Reference Manual}}
 
 
===External links===
 
 
* {{memoryalpha}}
 
* {{memoryalpha}}
 
* {{wikipedia}}
 
* {{wikipedia}}
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[[category:elements]]
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