Compare Element Properties

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Property	Ra Radium	? N/A
Atomic number	88	N/A
Symbol	Ra	N/A
Name	Radium	N/A
Category	alkaline-earth-metal	N/A
Standard Atomic Weight	226 u	N/A
Period	7	N/A
Group	2	N/A
Block	s	N/A
Phase at STP	solid	N/A
Electron configuration	[Rn]7s2	N/A
Oxidation states	[2]	N/A
Electronegativity (Pauling)	0.9	N/A
Electron affinity	0.096 eV	N/A
Density	5000 kg/m³	N/A
Melting point	699.85 °C	N/A
Boiling point	1139.85 °C	N/A
Discovery year	1898	N/A