Ta
Tantalum-157m
Protons (Z)
73
Neutrons (N)
84
Mass number
157
Half-Life
4.3 ms
Abundance
---
Mass
156.968 u
Mass Excess
-29,570.0 keV
Spin
11/2-
Discovered
1996
Binding energy per nucleon
7,896 keV
Neutron separation energy
11,641 keV
Proton separation energy
-961 keV
Decay Mode
Decay chain
- TaTantalum-157Z 73 · N 844.3 ms
- α100%
- α
- β⁺99.74%
- β⁺93%
- β⁺100%
- β⁺100%
- β⁺83.3%
- β⁺~100%
- EC100%