Tb

Terbium-146m

Protons (Z)

65

Neutrons (N)

81

Mass number

146

Half-Life

24.1 s

Abundance

---

Mass

145.927 u

Mass Excess

-67,610.0 keV

Spin

5-

Discovered

1974

Binding energy per nucleon

8,186 keV

Neutron separation energy

9,281 keV

Proton separation energy

1,972 keV

Decay Mode

β⁺Gadolinium-146100%

Decay chain

Terbium-146Z 65 · N 8124.1 s
β⁺100%
EC100%
β⁺100%
α100%