Atomic Number 38     Atomic Mass 87.62     Density 2.6 g/mL

State solid     Color silvery white      Electronegativity 0.95

Melting Point 769°C     Boiling Point 1384°C

Natural Isotopes Sr-84 0.56%   Sr-86 9.86%   Sr-87 7.00%    Sr-88 82.58%

Abbreviated Electron Configuration [Kr] 5s²

Discovered by Adair Crawford in 1808.