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Periodic table
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samarium
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Sm-144
Samarium-144 (Sm-144)
Identity
Protons
62
Neutrons
82
Mass number
144
Mass
143.9 ± 1.6 u
Mass excess
-81.966 MeV
Spin
0+
Stability
stable
Natural occurrence
3.080 %
of samarium
Produced by
Gd-148
All isotopes of samarium