Zr
Zirconium-90
Protons (Z)
40
Neutrons (N)
50
Mass number
90
Half-Life
Stable
Abundance
51.45%
Mass
89.905 u
Mass Excess
-88,772.55 keV
Spin
0+
Discovered
1924
Binding energy per nucleon
8,710 keV
Neutron separation energy
11,966 keV
Proton separation energy
8,350 keV
Decay Mode
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