Bi
Bismuth
Bismuth is a chemical element with the symbol Bi and atomic number 83. It has a standard atomic weight of 208.98, sits in period 6 and group 15, and is classified as a post-transition metal.
Properties
| Symbol | Bi |
|---|---|
| Atomic number | 83 |
| Standard atomic weight | 208.98 |
| Category | Post-transition metal |
| Group | 15 |
| Period | 6 |
| Electron configuration | [Xe] 4f14 5d10 6s2 6p3 |
| Outer-shell electrons | 5 |
The figure of 208.98 is a standard atomic weight.
Compounds containing bismuth
1 of the compounds in this reference contain Bi, listed by the fraction of their mass it makes up.
| Compound | Formula | Atoms | % by mass |
|---|---|---|---|
| bismuth nitrate | BiN3O9 | 1 | 52.9% |
Calculate with bismuth
- Molar mass of any formula containing it
- Electron configuration, including ions
- Effective nuclear charge by Slater's rules
- Average atomic mass from isotope abundances
Group 15
Atomic weights are the IUPAC 2021 standard values, abridged to the conventional five significant figures. Group, period, category and electron configuration are derived from the atomic number rather than stored, so they cannot drift out of step with it.