Th
Thorium-209m
Protons (Z)
90
Neutrons (N)
119
Mass number
209
Half-Life
3.1 ms
Abundance
---
Mass
209.018 u
Mass Excess
16,765.0 keV
Spin
13/2+
Discovered
1996
Binding energy per nucleon
7,654 keV
Neutron separation energy
7,996 keV
Proton separation energy
1,284 keV
Decay Mode
Decay chain
- ThThorium-209Z 90 · N 1193.1 ms
- α100%
- α100%
- α
- α44%
- β⁺
- β⁺100%
- β⁺100%
- β⁺100%
- EC100%