Tl
Thallium-212
Protons (Z)
81
Neutrons (N)
131
Mass number
212
Half-Life
31.0 s
Abundance
---
Mass
211.998 u
Mass Excess
-1,550.0 keV
Spin
(5+)
Discovered
1998
Binding energy per nucleon
7,780 keV
Neutron separation energy
3,541 keV
Proton separation energy
8,449 keV
Decay Mode
Decay chain
- TlThallium-212Z 81 · N 13131.0 s
- β⁻98.2%
- β⁻100%
- β⁻64.046%
- α100%