Tl
Thallium-203m
Protons (Z)
81
Neutrons (N)
122
Mass number
203
Half-Life
---
Abundance
---
Mass
202.974 u
Mass Excess
-24,277.6 keV
Spin
(9/2-)
Discovered
2020
Binding energy per nucleon
7,879 keV
Neutron separation energy
6,369 keV
Proton separation energy
4,221 keV
Decay Mode
- γ→Thallium-203100%
Decay chain
- TlThallium-203Z 81 · N 122Unknown
- γ100%