Th

Thorium-217n

Protons (Z)

90

Neutrons (N)

127

Mass number

217

Half-Life

71.0 µs

Abundance

---

Mass

217.016 u

Mass Excess

14,510.0 keV

Spin

(25/2+)

Discovered

2002

Binding energy per nucleon

7,680 keV

Neutron separation energy

3,860 keV

Proton separation energy

929 keV

Decay Mode

γThorium-217100%

Decay chain

Thorium-217Z 90 · N 12771.0 µs
γ100%
α100%
α87%
β⁺83%
β⁺96.1%
α99.546%
EC100%