Pb
Lead-208
Protons (Z)
82
Neutrons (N)
126
Mass number
208
Half-Life
Stable
Abundance
52.4%
Mass
207.977 u
Mass Excess
-21,748.5 keV
Spin
0+
Discovered
1927
Binding energy per nucleon
7,867 keV
Neutron separation energy
7,368 keV
Proton separation energy
8,003 keV
Decay Mode
- α→Mercury-204