ASCII PERIODIC TABLE OF THE ELEMENTS
Fm
Relative atomic mass: [257]
English: Fermium
French: Fermium
Croatian: Fermij
German: Fermium
Italian: Fermio
Spanish: Fermio
Atomic number: 100
Group numbers: 3
Period: 7
Standard state (20 oC): solid
Discovery: 1953 Albert Ghiorso & Berkely Lab. (US)
Fermium was discovered by Albert Ghiorso & Berkely Lab. (US) in 1953. Named in honour of Enrico Fermi. It is a synthetic radioactive metal. Fermium was produced by bombarding lighter transuranium elements with still lighter particles or by neutron capture.
Electronic configuration: [Rn] 5f12 7s2
Formal oxidation number: +3
Atomic radius: - pm
Electronegativities: -
Thermal conductivity: - W/(m K)
Electrical resistivity (20 oC): - microOhm cm
Melting point: 1527 oC
Boiling point: - oC
Heat of fusion: - kJ/mol
Heat of vaporization: - kJ/mol
Heat of atomization: 141 kJ/mol
99Es <= 100Fm => 101Md
ASCII Periodic Table of the Elements
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6 Jan. 2020
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