83
Bi
208.98
Bismuth (Bi)
Element 83 · Period 6 · Group 15
post-transition
solid at room temp
p-block
About Bismuth
Heaviest stable element. Creates spectacular rainbow-colored oxide crystals. Used in medicines like Pepto-Bismol.
Physical Properties
Atomic Mass
208.98 u
State at 25°C
Solid
Melting Point
271.5 °C
Boiling Point
1564 °C
Density
9.747 g/cm³
Magnetism
Diamagnetic
Atomic Properties
Electron Configuration
[Xe] 4f¹⁴ 5d¹⁰ 6s² 6p³
Electron Shells
2, 8, 18, 32, 18, 5
Electronegativity
2.02
Atomic Radius
143 pm
Ionization Energy
703 kJ/mol
Oxidation States
+3, +5
Discovery & History
Discovered By
Claude François Geoffroy
Discovery Year
1753
Named By
Claude François Geoffroy
Name origin: German: Wismut
Frequently Asked Questions
- Is Bismuth a metal, nonmetal, or metalloid?
- Bismuth is classified as a post-transition.
- What state is Bismuth in at room temperature?
- Bismuth is a solid at standard room temperature (25°C).
- What is the atomic mass of Bismuth?
- Bismuth has an atomic mass of 208.98 atomic mass units (u).
- Who discovered Bismuth?
- Bismuth was discovered by Claude François Geoffroy in 1753.
- Where is Bismuth on the periodic table?
- Bismuth is element number 83, located in period 6 and group 15.