Tb

Terbium-157

Protons (Z)

65

Neutrons (N)

92

Mass number

157

Half-Life

71.0 y

Abundance

---

Mass

156.924 u

Mass Excess

-70,763.8 keV

Spin

3/2+

Discovered

1960

Binding energy per nucleon

8,198 keV

Neutron separation energy

8,744 keV

Proton separation energy

5,517 keV

Decay Mode

ECGadolinium-157100%

Decay chain

Terbium-157Z 65 · N 9271.0 y
EC100%