Ta

Tantalum-189m

Protons (Z)

73

Neutrons (N)

116

Mass number

189

Half-Life

1.6 µs

Abundance

---

Mass

188.967 u

Mass Excess

-30,310.0 keV

Spin

(21/2-)

Discovered

2009

Binding energy per nucleon

7,930 keV

Neutron separation energy

4,471 keV

Proton separation energy

6,769 keV

Decay Mode

γTantalum-189100%

Decay chain

Tantalum-189Z 73 · N 1161.6 µs
γ100%
β⁻100%
β⁻100%
β⁻100%