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Bismuth (Bi)

Bismuth (Bi) is element 83 of the periodic table, a post-transition metal in period 6 and group 15. Its standard atomic weight is 208.9804, so one mole of bismuth atoms has a mass of 208.9804 g. At room temperature it is a solid; it melts at 271.4 °C and boils at 1563.85 °C.

83 Bi Bismuth 208.9804

Period 6, group 15 · Post-transition metal

← Pb Lead Po Polonium →

Atomic number	83
Symbol	Bi
Standard atomic weight	208.9804
Molar mass	208.9804 g/mol
Category	Post-transition metal
Group	15
Period	6
Block	p-block
Electron configuration	[Xe] 6s² 4f¹⁴ 5d¹⁰ 6p³
Oxidation states	+5, +3
Electronegativity (Pauling)	2.02
Atomic radius (van der Waals)	207 pm
First ionisation energy	7.289 eV (703.3 kJ/mol)
Electron affinity	0.946 eV
State at room temperature	Solid
Melting point	544.55 K (271.4 °C)
Boiling point	1837 K (1563.85 °C)
Density	9.807 g/cm³
Discovered	1753

Group 15

N · Nitrogen P · Phosphorus As · Arsenic Sb · Antimony Mc · Moscovium

Calculate with Bismuth

Molar mass of Bi 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.