Pb

Lead-204

Protons (Z)

82

Neutrons (N)

122

Mass number

204

Half-Life

Stable

Abundance

1.4%

Mass

203.973 u

Mass Excess

-25,109.8 keV

Spin

0+

Discovered

1932

Binding energy per nucleon

7,880 keV

Neutron separation energy

8,395 keV

Proton separation energy

6,637 keV

Decay Mode

αMercury-200