Tools · Chemistry

Lead (Pb)

Lead (Pb) is element 82 of the periodic table, a post-transition metal in period 6 and group 14. Its standard atomic weight is 207.2, so one mole of lead atoms has a mass of 207.2 g. At room temperature it is a solid; it melts at 327.46 °C and boils at 1748.85 °C.

82 Pb Lead 207.2

Period 6, group 14 · Post-transition metal

← Tl Thallium Bi Bismuth →

Atomic number	82
Symbol	Pb
Standard atomic weight	207.2
Molar mass	207.2 g/mol
Category	Post-transition metal
Group	14
Period	6
Block	p-block
Electron configuration	[Xe] 6s² 4f¹⁴ 5d¹⁰ 6p²
Oxidation states	+4, +2
Electronegativity (Pauling)	2.33
Atomic radius (van der Waals)	202 pm
First ionisation energy	7.417 eV (715.6 kJ/mol)
Electron affinity	0.36 eV
State at room temperature	Solid
Melting point	600.61 K (327.46 °C)
Boiling point	2022 K (1748.85 °C)
Density	11.342 g/cm³
Discovered	Known since antiquity

Group 14

C · Carbon Si · Silicon Ge · Germanium Sn · Tin Fl · Flerovium

Calculate with Lead

Molar mass of Pb Balance an equation Grams, moles and particles Whole periodic table

Atomic weight: IUPAC CIAAW standard atomic weight. Other properties: PubChem (U.S. National Library of Medicine, public domain). Values such as melting point and radius depend on how they were measured; check a data book for precise work.