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Periodic table
›
strontium
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Sr-87
Strontium-87 (Sr-87)
Identity
Protons
38
Neutrons
49
Mass number
87
Mass
86.9089 ± 0.0055 u
Mass excess
-84.880 MeV
Spin
9/2+*
Stability
stable
Natural occurrence
7.000 %
of strontium
Produced by
Rb-87
Y-87
All isotopes of strontium