Au

Gold-201m

Protons (Z)

79

Neutrons (N)

122

Mass number

201

Half-Life

730.0 µs

Abundance

---

Mass

200.972 u

Mass Excess

-25,807.0 keV

Spin

11/2-

Discovered

1981

Binding energy per nucleon

7,892 keV

Neutron separation energy

6,638 keV

Proton separation energy

6,497 keV

Decay Mode

γGold-201100%

Decay chain

Gold-201Z 79 · N 122730.0 µs
γ100%
β⁻100%