82 Pb 207.21
Lead
post-transition metal
Properties
- Atomic number
- 82
- Atomic mass
- 207.21 u
- Category
- post-transition metal
- Group
- 14
- Period
- 6
- Block
- p-block
- State (room temp)
- Solid
- Outer-shell electrons
- 4
- Electronegativity
- 1.87 (Pauling)
- Density
- 11.34 g/cm³
- Melting point
- 327.46 °C
- Boiling point
- 1748.85 °C
Electron configuration
1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d¹⁰ 6p²
Noble-gas shorthand: [Xe] 4f¹⁴ 5d¹⁰ 6s² 6p²
Electrons per shell: 2, 8, 18, 32, 18, 4 — that's 4 in the outermost shell.
About Lead
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.
- Discovered by Middle East
- Appearance: metallic gray
Position in the periodic table
Data compiled from Wikipedia, PubChem, and IUPAC. Source.