Pb

Lead-205

Protons (Z)

82

Neutrons (N)

123

Mass number

205

Half-Life

17.0 My

Abundance

---

Mass

204.974 u

Mass Excess

-23,770.2 keV

Spin

5/2-

Discovered

1954

Binding energy per nucleon

7,874 keV

Neutron separation energy

6,732 keV

Proton separation energy

6,713 keV

Decay Mode

ECThallium-205100%

Decay chain

Lead-205Z 82 · N 12317.0 My
EC100%