Cerium: Difference between revisions
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{{Elem_Infobox | |||
|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> | |||
|no1= | |||
|no2= | |||
|no3= | |||
|no4= | |||
|properties=Soft, iron-gray, malleable and ductile metal. | |||
|compounds= | |||
|uses= | |||
|hazard=Ignites spontaneously in air. Moderate toxicity. | |||
}} | |||
'''Cerium''' is a [[Chemical elements|chemical element]], having the [[chemical symbol]] Ce. Its [[atomic number]] (the number of [[proton]]s) is 58. It has a [[Atomic mass#Standard atomic weights of the elements|standard atomic weight]] of 140.116 g•mol<sup> −1</sup> 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 k[[Pascal (unit)|Pa]], it has a [[boiling point]] of 3,443 °[[Celsius (unit)|C]] and a [[melting point]] of 778 °C. | |||
Latest revision as of 16:37, 28 April 2011
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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.