PbZ =  82

From the Anglo-Saxon "lead"
(AM) Atomic Mass 207.2  amu    Oxidation States +2, +4
   (BP) Boiling Point 1740  °C    (MP) Melting Point 327.5  °C
   (ρ) Density 11.4  g/cm3    Crystal Structure Face Centered Cubic
   ( χ ) Electronegativity 1.8    (AR) Atomic Radius 1.47  Å
   Physical State Solid (C) Heat Capacity 0.129  J/g °C
Electronic-Config [Xe]  4f14  5d10  6s2  6p2     (I1) First Ionization E 715.53  kJ/mol
   (ΔHvap) Heat of Vaporization 179.5  kJ/mol     (ΔHfus) Heat of Fusion 4.77  kJ/mol
   Year of Discovery Known to the Ancients    Location of Discovery n/a
(E°) Standard Potential Pb2+⇔ Pb (-0.126 V)
Stable isotopes  204Pb,  206Pb,  207Pb,  208Pb
Discovered/Synthesized by Known since ancient times
Natural Source The mineral/ore galena
Common Uses Weights, solders, batteries, bullets, crystal glass, old plumbing, radiation shield
Other Info Latin name: Plumbum
Most commonly used for radiation shielding.
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