Bismuth (Bi) - Element 83 | Properties & Electron Configuration
What is Bismuth?
Bismuth (Bi) is element 83, a post transition metal in period 6, group 15. Its electron configuration is 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 4f¹⁴ 5s² 5p⁶ 5d¹⁰ 6s² 6p³.
| Atomic Number | 83 |
| Symbol | Bi |
| Atomic Mass | 208.98 u |
| Category | Post Transition Metal |
| Period | 6 |
| Group | 15 |
| Block | p |
| Electron Configuration | 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 4f¹⁴ 5s² 5p⁶ 5d¹⁰ 6s² 6p³ |
| Short Config | [Xe] 4f¹⁴ 5d¹⁰ 6s² 6p³ |
| Electronegativity | 2.02 |
| Atomic Radius | 160 pm |
| Ionization Energy | 703 kJ/mol |
| Electron Affinity | 91 kJ/mol |
| Phase (STP) | Solid |
Electron Configuration
The full electron configuration of Bismuth is 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 4f¹⁴ 5s² 5p⁶ 5d¹⁰ 6s² 6p³. In noble gas shorthand, this is written as [Xe] 4f¹⁴ 5d¹⁰ 6s² 6p³.
Bismuth is a p-block element in group 15, period 6.
Periodic Trends
Electronegativity: Bismuth has a Pauling electronegativity of 2.02. Within group 15, electronegativity generally decreases down the group.
Atomic Radius: 160 pm. Across period 6, atomic radius generally decreases left to right as nuclear charge increases.
Ionization Energy: 703 kJ/mol. Ionization energy generally increases across a period and decreases down a group.
View all 118 elements with trend overlays for electronegativity, atomic radius, ionization energy, and electron affinity.
Explore Bismuth on the Interactive Periodic TableRelated Topics
Nitrogen (N)
Properties of Nitrogen - same group as Bismuth
Phosphorus (P)
Properties of Phosphorus - same group as Bismuth
Arsenic (As)
Properties of Arsenic - same group as Bismuth
Cesium (Cs)
Properties of Cesium - same period as Bismuth
Barium (Ba)
Properties of Barium - same period as Bismuth
Lanthanum (La)
Properties of Lanthanum - same period as Bismuth