82Solid
Pb 207.2 Atomic mass · uPost-transition metals
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.
Discovery Ancient (Middle East)
K2L8M18N32O18P4
Physical properties
Values for the element in its standard state.
- Density
- 11.34g/cm³
- Melting point
- 601K
- Boiling point
- 2,022K
- Atomic radius
- 147pm
- Bonding type
- Metallic
- Molar heat
- 26.65J/(mol·K)
Inside the atom
Electron arrangement and the energy behind its behavior.
Full electron configuration
1s, 2 electrons; 2s, 2 electrons; 2p, 6 electrons; 3s, 2 electrons; 3p, 6 electrons; 3d, 10 electrons; 4s, 2 electrons; 4p, 6 electrons; 4d, 10 electrons; 5s, 2 electrons; 5p, 6 electrons; 4f, 14 electrons; 5d, 10 electrons; 6s, 2 electrons; 6p, 2 electrons;
[Xe] represents 54 core electrons. The full view shows them explicitly.
82 electrons Orbital order preserved from source
- Electronegativity
- 2.33Pauling scale
- First ionization energy
- 716kJ/mol
- Electron affinity
- 35kJ/mol
- Van der Waals radius
- 202pm
Pb LeadAtomic number 82
716kJ/mol
Atomic numberGaps indicate unavailable data
About lead
- Appearance
- Metallic gray
- Discovery
- Ancient (Middle East)
- Data source
- Read the reference
A missing value means it is unavailable in this reference dataset. Values can vary with measurement method and conditions.