Yes. Bismuth is a metal, classified as a post-transition metal on the periodic table.

How many protons does bismuth have?

Bismuth has 83 protons. Its atomic number is 83, which is also the number of electrons in a neutral atom of bismuth.

What group and period is bismuth in?

Bismuth is in group 15 and period 6 of the periodic table, in the p-block.

What is the atomic mass of bismuth?

The atomic mass of bismuth is 208.98 u (unified atomic mass units).

Element 83

Bismuth (Bi)

Post-transition metal · Period 6 · Group 15 · p-block

Bismuth (Bi) is element 83 of the periodic table, a post-transition metal in period 6, group 15 (p-block) with an atomic mass of 208.98 and is a solid at standard conditions.

At a glance

Atomic number: 83
Symbol: Bi
Atomic mass: 208.98 u
Category: Post-transition metals
Period: 6
Group: 15
Block: p-block
Phase at STP: solid

Electron structure

Electron configuration: 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 6s2 6p3
Shorthand configuration: [Xe] 4f14 5d10 6s2 6p3
Electrons per shell: 2, 8, 18, 32, 18, 5
Oxidation states: -3, -2, -1, +1, +2, +3, +4, +5

Physical properties

Melting point: 544.55 K (271.4 °C)
Boiling point: 1,837 K (1,563.85 °C)
Density: 9.807 g/cm³
Phase: solid

Atomic properties

Electronegativity (Pauling): 2.02
Atomic radius: 143 pm
Covalent radius: 148 pm
Van der Waals radius: 207 pm
First ionization energy: 703 kJ/mol
Electron affinity: 91 kJ/mol

Notable isotopes

Notable isotopes of Bismuth: mass number, atomic mass, natural abundance, and stability.
Isotope	Mass	Abundance	Stability
Bi-209	208.9804	100%	Stable

Common uses

Medicine
Cosmetics
Low-melting alloys
Fire sprinklers

Discovery

Year: 1753
Discovered by: Claude François Geoffroy
Country: France

Frequently asked questions

Is bismuth a metal?: Yes. Bismuth is a metal, classified as a post-transition metal on the periodic table.
How many protons does bismuth have?: Bismuth has 83 protons. Its atomic number is 83, which is also the number of electrons in a neutral atom of bismuth.
What group and period is bismuth in?: Bismuth is in group 15 and period 6 of the periodic table, in the p-block.
What is the atomic mass of bismuth?: The atomic mass of bismuth is 208.98 u (unified atomic mass units).

Keep exploring

Bismuth's row is on the printable element property sheet, and its tile is on the periodic table wall chart - the same numbers as above, laid out for A4 or A3 paper.