82 Pb 207.2
Lead
Post-Transition Metal
Lead (Pb) is a chemical element with atomic number 82, classified as a post-transition metal. At room temperature it is a solid. It has been known since ancient times.
Properties
- Atomic number
- 82
- Atomic mass
- 207.2 u
- Category
- Post-Transition Metal
- Group
- 14
- Period
- 6
- Block
- p-block
- Electron configuration
- [Xe] 4f¹⁴ 5d¹⁰ 6s² 6p²
- Phase at STP
- Solid
- Density
- 11.342 g/cm³
- Melting point
- 600.61 K (327.5 °C)
- Boiling point
- 2022 K (1748.8 °C)
- Electronegativity
- 2.33
- Atomic radius
- 154 pm
- Ionization energy
- 7.417 eV
- Discovery
- Known since ancient times
Common uses
Batteries, radiation shielding, ammunition, pipes
Did you know?
Heavy, soft metal that's toxic but excellent for radiation protection.
Compounds you can make with lead
Lead appears in one compound in our periodic table sandbox. Each one is a real substance with its true chemical formula — combine the right elements in the right ratio below to discover it.
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PbS
Lead(II) Sulfide (Galena)
The shiny grey mineral galena, the most important ore of lead.