Pb

Lead-203

Protons (Z)

82

Neutrons (N)

121

Mass number

203

Half-Life

2.16 d

Abundance

---

Mass

202.973 u

Mass Excess

-24,786.0 keV

Spin

5/2-

Discovered

1942

Binding energy per nucleon

7,877 keV

Neutron separation energy

6,916 keV

Proton separation energy

6,095 keV

Decay Mode

ECThallium-203100%

Decay chain

Lead-203Z 82 · N 1212.16 d
EC100%