Element 83
Bismuth
Post-transition metals
Bismuth (Bi) is in the p-block of the periodic table — group 15, period 6.
Bismuth is a chemical element with symbol Bi and atomic number 83.
Key data
- Atomic number
- 83
- Atomic mass
- 208.980 u
- Group / Period
- 15 / 6
- Block
- p-block
- Phase at STP
- Solid
- Density
- 9.78 g/cm³
- Melting point
- 271.6 °C
- Boiling point
- 1563.8 °C
- Electron configuration
- [Xe] 4f14 5d10 6s2 6p3
Periodic table block
Bismuth is in the p-block (group 15, period 6). Elements land in the p-block when their highest-energy electrons fill a p subshell — this region holds most nonmetals, the metalloids, and the metals on the right of the table.
New to this? Periodic table blocks explained: s, p, d, and f
Common uses
- •Pepto-Bismol
- •Cosmetics
- •Lead-free solder
Discovery
Year: Known since antiquity
Discovered by: Claude François Geoffroy
Frequently asked questions
What is the atomic number of Bismuth?
Bismuth has atomic number 83. Its symbol is Bi and its atomic mass is 208.98 u.
What category of element is Bismuth?
Bismuth is classified as post-transition metals. It sits in group 15, period 6 of the periodic table.
What block of the periodic table is Bismuth in?
Bismuth is in the p-block (group 15, period 6). Its highest-energy electrons occupy the p subshell — you can see this in its electron configuration, [Xe] 4f14 5d10 6s2 6p3.
What is Bismuth used for?
Common uses of Bismuth include: Pepto-Bismol, Cosmetics, Lead-free solder.
When was Bismuth discovered?
Bismuth has been known since antiquity.
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