Cerium: Difference between revisions

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{{Elem_Infobox
{{Elem_Infobox
|elName=Cerium
|elName=Cerium
|eltrnCfg=1s<sup>2</sup>2s<sup>2</sup>2p<sup>6</sup>3s<sup>2</sup>3p<sup>6</sup>3d<sup>10</sup>4s<sup>2</sup>4p<sup>6</sup>4d<sup>10</sup>5s<sup>2</sup>5p<sup>6</sup>4f<sup>1</sup>5d<sup>1</sup>6s<sup>2</sup>
|eltrnCfg=1s<sup>2</sup>2s<sup>2</sup>2p<sup>6</sup>3s<sup>2</sup>3p<sup>6</sup>3d<sup>10</sup>4s<sup>2</sup>4p<sup>6</sup>
4d<sup>10</sup>5s<sup>2</sup>5p<sup>6</sup>4f<sup>1</sup>5d<sup>1</sup>6s<sup>2</sup>
|no1=  
|no1=  
|no2=  
|no2=  

Latest revision as of 16:37, 28 April 2011

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Cerium
140.116(1)



  Ce
58
1s22s22p63s23p63d104s24p6 4d105s25p64f15d16s2
[ ? ] Lanthanide:
Properties:
Soft, iron-gray, malleable and ductile metal.
Hazard:
Ignites spontaneously in air. Moderate toxicity.


Cerium is a chemical element, having the chemical symbol Ce. Its atomic number (the number of protons) is 58. It has a standard atomic weight of 140.116 g•mol −1 and is a solid in its elemental form.

Cerium is considered to be a member of the "Lanthanide" class of elements. At a pressure of 101.325 kPa, it has a boiling point of 3,443 °C and a melting point of 778 °C.