Promethium: Difference between revisions
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{{subpages}}{{ | {{subpages}}Promethium is a [[Synthetic element|synthetic chemical element]], having the [[chemical symbol]] Pm. | ||
{{Elem_Infobox | |||
|background1= f2f2f2 | |||
|align=right | |||
|elementColor= | |||
|elName= Promethium | |||
|elMass= 196.967 | |||
|elSym= Pm | |||
|elNum= 61 | |||
|elClass=Lanthanide | |||
|hazard= [[Radioactive]] | |||
}} | |||
Its [[atomic number]] (the number of [[protons]]) is 61. It has a [[Atomic mass|Standard Atomic Weight of]] (147), and is typically found as a [[solid]] in its elemental form. | |||
Promethium has a [[boiling point]] of [[Promethium/Boiling point|{{:Promethium/Melting point}}]], and a [[melting point]] of [[Promethium/Melting point|{{:Promethium/Melting point}}]].<references/> | |||
Revision as of 15:42, 10 May 2010
Promethium is a synthetic chemical element, having the chemical symbol Pm.
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Its atomic number (the number of protons) is 61. It has a Standard Atomic Weight of (147), and is typically found as a solid in its elemental form. Promethium has a boiling point of 1,042 °C , and a melting point of 1,042 °C .