Curium Properties, Molecular Formula, Applications - WorldOfChemicals

Curium Properties

Curium

Description

 

Curium is a synthetic radioactive transuranic element. It was named after Marie Sklodowska Curie and her husband Pierre Curie. Curium periodic table element is named after chemist and physicist Marie Curie. Curium was identified by Glenn Seaborg, Ralph James and Albert Ghiorso in 1944 at the wartime metallurgical laboratory at the University of Chicago. Its production was the result of helium-ion bombardment of radioactive element Plutonium-239. Curium is highly radioactive. As a metal, it is lustrous and silvery. It is malleable, chemically reactive and electropositive. Its surface rapidly oxidizes in air, gaining a thin film. In dilute solutions, it dissolves rapidly to form Cm (III) solutions. Curium metal exists in two crystal structures double-hexagonal close-packed, face-centered cubic close-packed.

Chemical Properties

Appearance Silvery Solid
Atomic Number 96
Atomic Weight 247 g/mol
Block f
Boiling Point 3110 °C
CAS Number 7440-51-9
Crystal Structure Hexagonal Close-Packed
Density 13.51 g/cm3
Electron Configuration 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 5s2 4d10 5p6 4f14 5d10 6s2 6p6 5f7 6d1 7s2
Ionization Energy 581 KJ/mol
Melting Point 1340 °C
Oxidation State 4,3
Period 7
Symbol Cm
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