Tl
Thallium-211m
Protons (Z)
81
Neutrons (N)
130
Mass number
211
Half-Life
580.0 ns
Abundance
---
Mass
210.995 u
Mass Excess
-4,840.0 keV
Spin
(17/2+)
Discovered
2019
Binding energy per nucleon
7,794 keV
Neutron separation energy
3,664 keV
Proton separation energy
6,829 keV
Decay Mode
- γ→Thallium-211100%
Decay chain
- TlThallium-211Z 81 · N 130580.0 ns
- γ100%
- β⁻97.8%
- β⁻100%
- α~100%
- β⁻100%