Re
Rhenium-185
Protons (Z)
75
Neutrons (N)
110
Mass number
185
Half-Life
Stable
Abundance
37.4%
Mass
184.953 u
Mass Excess
-43,819.0 keV
Spin
5/2+
Discovered
1931
Binding energy per nucleon
7,991 keV
Neutron separation energy
7,670 keV
Proton separation energy
5,402 keV
Decay Mode
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