Tl
Thallium-186m
Protons (Z)
81
Neutrons (N)
105
Mass number
186
Half-Life
27.5 s
Abundance
---
Mass
185.979 u
Mass Excess
-19,860.0 keV
Spin
7+
Discovered
1975
Binding energy per nucleon
7,837 keV
Neutron separation energy
8,173 keV
Proton separation energy
965 keV
Decay Mode
Decay chain
- TlThallium-186Z 81 · N 10527.5 s
- β⁺~100%
- β⁺~100%
- β⁺~100%
- β⁺~100%
- β⁺100%
- α100%