Periodic Table of the Elements
Periodic Table




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name Radium
latin Radium
french Radium
german Radium
symbol Ra
proton number 88
atomic weight 226.0254
Pauling electronegativity 0.9
electronic configuration [Rn] 7s2
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melting point 973 K, 700°C, 1292°F
boiling point 2010 K, 1737°C, 3158°F
group 2
period 7
state (by 20°C) solid
oxidation states +2
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Year of discovery Discoverers
1898 Pierre Curie (1859-1906)
Marie Curie-Sklodowská (1867-1934)

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