Hf

Hafnium-171

Protons (Z)

72

Neutrons (N)

99

Mass number

171

Half-Life

12.1 h

Abundance

---

Mass

170.94 u

Mass Excess

-55,431.0 keV

Spin

7/2+

Discovered

1951

Binding energy per nucleon

8,066 keV

Neutron separation energy

7,248 keV

Proton separation energy

5,414 keV

Decay Mode

β⁺Lutetium-171100%

Decay chain

Hafnium-171Z 72 · N 9912.1 h
β⁺100%
β⁺100%