Th
Thorium-216m
Protons (Z)
90
Neutrons (N)
126
Mass number
216
Half-Life
135.4 µs
Abundance
---
Mass
216.013 u
Mass Excess
12,340.0 keV
Spin
8+
Discovered
1983
Binding energy per nucleon
7,688 keV
Neutron separation energy
6,652 keV
Proton separation energy
980 keV
Decay Mode
Decay chain
- ThThorium-216Z 90 · N 126135.4 µs
- γ97.2%
- α100%
- α
- α62%
- β⁺99.33%
- β⁺100%