Tm

Thulium-172

Protons (Z)

69

Neutrons (N)

103

Mass number

172

Half-Life

2.65 d

Abundance

---

Mass

171.938 u

Mass Excess

-57,374.0 keV

Spin

2-

Discovered

1956

Binding energy per nucleon

8,091 keV

Neutron separation energy

6,235 keV

Proton separation energy

6,945 keV

Decay Mode

β⁻Ytterbium-172100%

Decay chain

Thulium-172Z 69 · N 1032.65 d
β⁻100%