Radium

A radioactive element of the alkaline earth metals. White in colour and properties close to barium.


Symbol
Ra

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Atomic number 88 Clip
Atomic / Molecular Weight 226.0254 gmol-1Clip
Density 5000 kgm-3Clip
Lattice constant 515 fmClip
Melting Point 973 KClip
Boiling Point 1773 KClip
Specific heat capacity 121 Jkg-1K-1Clip
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See also: Barium, Curie, Pierre & Marie, Periodic Table.

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Subjects: Chemistry