Lu

Lutetium-172

Protons (Z)

71

Neutrons (N)

101

Mass number

172

Half-Life

6.7 d

Abundance

---

Mass

171.939 u

Mass Excess

-56,736.1 keV

Spin

4-

Discovered

1951

Binding energy per nucleon

8,078 keV

Neutron separation energy

6,979 keV

Proton separation energy

4,718 keV

Decay Mode

β⁺Ytterbium-172100%

Decay chain

Lutetium-172Z 71 · N 1016.7 d
β⁺100%