Tb

Terbium-154m

Protons (Z)

65

Neutrons (N)

89

Mass number

154

Half-Life

21.5 h

Abundance

---

Mass

153.925 u

Mass Excess

-70,030.0 keV

Spin

0-

Discovered

1950

Binding energy per nucleon

8,196 keV

Neutron separation energy

6,787 keV

Proton separation energy

4,436 keV

Decay Mode

Decay chain

Terbium-154Z 65 · N 8921.5 h
β⁺100%