Ta

Tantalum-187

Protons (Z)

73

Neutrons (N)

114

Mass number

187

Half-Life

2.3 m

Abundance

---

Mass

186.96 u

Mass Excess

-36,900.0 keV

Spin

(7/2+)

Discovered

1999

Binding energy per nucleon

7,963 keV

Neutron separation energy

6,361 keV

Proton separation energy

7,769 keV

Decay Mode

β⁻Tungsten-187100%

Decay chain

Tantalum-187Z 73 · N 1142.3 m
β⁻100%
β⁻100%
β⁻100%