Tl
Thallium-217
Protons (Z)
81
Neutrons (N)
136
Mass number
217
Half-Life
2.0 s
Abundance
---
Mass
217.02 u
Mass Excess
18,660.0 keV
Spin
(1/2+)
Discovered
2010
Binding energy per nucleon
7,693 keV
Neutron separation energy
4,281 keV
Proton separation energy
9,549 keV
Decay Mode
Decay chain
- TlThallium-217Z 81 · N 1362.0 s
- β⁻
- β⁻100%
- β⁻100%
- α97.5%
- β⁻100%
- β⁻97.91%
- α100%
- β⁻100%
- α100%