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Periodic table
›
lead
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Pb-208
Lead-208 (Pb-208)
Identity
Protons
82
Neutrons
126
Mass number
208
Mass
208.0 ± 1.2 u
Mass excess
-21.749 MeV
Spin
0+
Stability
stable
Natural occurrence
52.40 %
of lead
Produced by
Bi-208
All isotopes of lead