Gd

Gadolinium-163m

Protons (Z)

64

Neutrons (N)

99

Mass number

163

Half-Life

23.5 s

Abundance

---

Mass

162.934 u

Mass Excess

-61,250.4 keV

Spin

1/2-

Discovered

2014

Binding energy per nucleon

8,140 keV

Neutron separation energy

5,041 keV

Proton separation energy

9,816 keV

Decay Mode

Decay chain

Gadolinium-163Z 64 · N 9923.5 s
γ
β⁻100%
β⁻100%