Tl
Thallium-178
Protons (Z)
81
Neutrons (N)
97
Mass number
178
Half-Life
255.0 ms
Abundance
---
Mass
177.995 u
Mass Excess
-4,610.0 keV
Spin
(4-)
Discovered
1997
Binding energy per nucleon
7,741 keV
Neutron separation energy
9,341 keV
Proton separation energy
-881 keV
Decay Mode
- β⁺SF0.15%
Decay chain
- TlThallium-178Z 81 · N 97255.0 ms
- α62%
- α90%
- α5.2%
- β⁺88%
- β⁺99.965%
- β⁺100%
- β⁺100%
- β⁺100%
- EC100%
- β⁺100%