ASCII PERIODIC TABLE OF THE ELEMENTS

  Cm

Relative atomic mass: [247]

English: Curium
French: Curium
Croatian: Kurij
German: Curium
Italian: Curio
Spanish: Curio

Atomic number: 96
Group numbers: 3
Period: 7
Standard state (20 oC): solid

Discovery: 1944 Glenn T. Seaborg, Ralph A. James, Albert Ghiorso (US)
Curium was discovered by Glenn T. Seaborg, Ralph A. James, and Albert Ghiorso (US) in 1944. Named in honour of Pierre and Marie Curie. It is a silvery, malleable, synthetic radioactive metal. So radioactive it glows in the dark. Curium was made by bombarding plutonium with helium ions.
Electronic configuration: [Rn] 5f7 6d1 7s2
Formal oxidation number: +3
Atomic radius: 174 pm

Electronegativities: -
Thermal conductivity: - W/(m K)
Electrical resistivity (20 oC): - microOhm cm

Melting point: 1345 oC
Boiling point: - oC

Heat of fusion: - kJ/mol
Heat of vaporization: - kJ/mol
Heat of atomization: 382 kJ/mol

95Am <= 96Cm => 97Bk


ASCII Periodic Table of the Elements
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29 Aug. 2017
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