Ta

Tantalum-178m

Protons (Z)

73

Neutrons (N)

105

Mass number

178

Half-Life

9.31 m

Abundance

---

Mass

177.946 u

Mass Excess

-50,498.0 keV

Spin

(1+)

Discovered

1950

Binding energy per nucleon

8,034 keV

Neutron separation energy

6,854 keV

Proton separation energy

4,906 keV

Decay Mode

β⁺Hafnium-178100%

Decay chain

Tantalum-178Z 73 · N 1059.31 m
β⁺100%