Pb

Lead-201m

Protons (Z)

82

Neutrons (N)

119

Mass number

201

Half-Life

1.01 m

Abundance

---

Mass

200.974 u

Mass Excess

-24,642.0 keV

Spin

13/2+

Discovered

1952

Binding energy per nucleon

7,875 keV

Neutron separation energy

6,462 keV

Proton separation energy

4,884 keV

Decay Mode

Decay chain

Lead-201Z 82 · N 1191.01 m
γ100%
β⁺100%
EC100%