Tl
Thallium-200m
Protons (Z)
81
Neutrons (N)
119
Mass number
200
Half-Life
34.0 ms
Abundance
---
Mass
199.972 u
Mass Excess
-26,293.0 keV
Spin
7+
Discovered
1963
Binding energy per nucleon
7,886 keV
Neutron separation energy
6,305 keV
Proton separation energy
4,036 keV
Decay Mode
- γ→Thallium-200100%
Decay chain
- TlThallium-200Z 81 · N 11934.0 ms
- γ100%
- β⁺100%