Tb

Terbium-144m

Protons (Z)

65

Neutrons (N)

79

Mass number

144

Half-Life

4.25 s

Abundance

---

Mass

143.933 u

Mass Excess

-61,971.0 keV

Spin

6-

Discovered

1982

Binding energy per nucleon

8,149 keV

Neutron separation energy

9,622 keV

Proton separation energy

1,030 keV

Decay Mode

Decay chain

Terbium-144Z 65 · N 794.25 s
γ66%
β⁺100%
β⁺100%
β⁺100%