Tl
Thallium-190m
Protons (Z)
81
Neutrons (N)
109
Mass number
190
Half-Life
3.6 m
Abundance
---
Mass
189.974 u
Mass Excess
-24,296.0 keV
Spin
7+
Discovered
1970
Binding energy per nucleon
7,866 keV
Neutron separation energy
7,751 keV
Proton separation energy
1,955 keV
Decay Mode
- β⁺→Mercury-190100%
Decay chain
- TlThallium-190Z 81 · N 1093.6 m
- β⁺100%
- β⁺100%
- β⁺~100%
- α100%
- α100%