83 Bi 208.98

Bismuth

post-transition metal

Properties

Atomic number
83
Atomic mass
208.98 u
Category
post-transition metal
Group
15
Period
6
Block
p-block
State (room temp)
Solid
Outer-shell electrons
5
Electronegativity
2.02 (Pauling)
Density
9.78 g/cm³
Melting point
271.55 °C
Boiling point
1563.85 °C

Electron configuration

1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d¹⁰ 6p³

Noble-gas shorthand: [Xe] 4f¹⁴ 5d¹⁰ 6s² 6p³

Electrons per shell: 2, 8, 18, 32, 18, 5, which is 5 in the outermost shell.

Related: electron configuration, the Bohr model, valence electrons.

Bi
Bohr model; outer-shell electrons in blue

About Bismuth

Bismuth is a chemical element with symbol Bi and atomic number 83. Bismuth, a pentavalent post-transition metal, chemically resembles arsenic and antimony. Elemental bismuth may occur naturally, although its sulfide and oxide form important commercial ores.

Bismuth: frequently asked questions

What is Bismuth?
Bismuth (Bi) is the chemical element with atomic number 83. It is a metal: specifically a post-transition metal.
What is the atomic number of Bismuth?
Bismuth's atomic number is 83, which means every Bismuth atom has 83 protons in its nucleus.
What is the electron configuration of Bismuth?
The electron configuration of Bismuth is 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p3 (noble-gas shorthand: [Xe] 4f14 5d10 6s2 6p3). Its electrons are arranged in shells of 2, 8, 18, 32, 18, 5, with 5 in the outermost shell.
Is Bismuth a metal or a nonmetal?
Bismuth is a metal: specifically a post-transition metal.
What group and period is Bismuth in?
Bismuth is in group 15 and period 6 of the periodic table.
Is Bismuth a solid, liquid, or gas?
At room temperature, Bismuth is a solid.

Position in the periodic table

Open the interactive periodic table →

Data compiled from Wikipedia, PubChem, and IUPAC. Source.