Ta
Tantalum-155
Protons (Z)
73
Neutrons (N)
82
Mass number
155
Half-Life
3.2 ms
Abundance
---
Mass
154.974 u
Mass Excess
-23,990.0 keV
Spin
11/2-
Discovered
2007
Binding energy per nucleon
7,858 keV
Neutron separation energy
---
Proton separation energy
-1,451 keV
Decay Mode
- p→Hafnium-154100%
Decay chain
- TaTantalum-155Z 73 · N 823.2 ms
- p100%
- β⁺100%
- β⁺
- α92.6%
- β⁺100%
- β⁺100%
- β⁺66.4%
- β⁺100%
- α100%
- α100%