Pb
Lead · element 82
Post-Transition Metal · Solid at room temperature
Lead (/lɛd/) is a chemical element in the carbon group with symbol Pb (from Latin:plumbum) and atomic number 82. Lead is a soft, malleable and heavy post-transition metal. Metallic lead has a bluish-white color after being freshly cut, but it soon tarnishes to a dull grayish color when exposed to air.
Key facts
Atomic mass
207.21 u
how heavy one atom is
Phase (room temp.)
Solid
Density
11.34 g/cm³
how tightly packed it is
Melting point
600.61 K (327 °C)
when solid turns to liquid
Boiling point
2022 K (1749 °C)
when liquid turns to gas
Period
6
its row in the periodic table
Group
14
its column in the periodic table
Block
P-block
the neighbourhood it lives in
Electronegativity
1.87
how strongly it pulls electrons
Electron configuration
[Xe] 4f14 5d10 6s2 6p2
where its electrons live
Shells
2 · 8 · 18 · 32 · 18 · 4
electrons in each layer, inside to out
Discovered by
Middle East
who found it
Appearance
metallic gray
what it looks like
Source: Wikipedia