Relative atomic mass: [281]

English: Darmstadtium
French: Darmstadtium
Croatian: Darmstatij
German: Darmstadtium
Italian: Darmstadtio
Spanish: Darmstadtio

Atomic number: 110
Group numbers: 10
Period: 7
Standard state (20 oC): solid

Discovery: 1994 Sigurd Hofmann & GSI Darmstadt (DE)
Darmstadtium was discovered by S. Hofmann (DE) et al. collaboration at the Heavy Ion Research Laboratory (Gesellschaft fur Schwerionenforschung, GSI) in Darmstadt, Germany in November 1994. The title honours the Laboratory for Heavy Ion Research (called GSI) in Darmstadt, Germany, where the substance was first made. It is a synthetic radioactive metal. The fusion-evaporation reaction using a 62Ni beam on an isotopically enriched 208Pb target produced four chains of alpha-emitting nuclides following the presumed formation of 269Ds + 1n.
Electronic configuration: [Rn] 5f14 6d9 7s1
Formal oxidation number: 
Atomic radius: - pm

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

Melting point: - oC
Boiling point: - oC

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

109Mt <= 110Ds => 111Rg

ASCII Periodic Table of the Elements
29 Aug. 2017
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