Information

Bismuth (Bi) - Properties


Atomic mass, symbol and atomic number

bismuth is a naturally occurring element with the element symbol Bi and the atomic number 83. In the periodic table it stands with an atomic mass of 208,980 u in the 5th main group. The chemical element discovered by Claude Geoffroy in 1753 is not radioactive and is in a solid state of aggregation at room temperature.

Profile: bismuth (bismuth)

General
Chemical element:bismuth
Symbol:Bi
Atomic number:83
Group:nitrogen group
Period:6
Block:p-block
Series:metals
Appearance:yellowish-silver
explorers:Claude François Geoffroy
Year of discovery:1753
Atomic properties
Atomic mass:208,980 u
Atomic radius:160 pm
Covalent radius:148 pm
Van der Waals radius:207 pm
Electron configuration:Xe 4f14 5d10 6s2 6p3
ionization:703 kJ / mol
Physical Properties
Physical state:firmly
Density:9.78 g / cm3
Crystal structure:cubic
Magnetism:diamagnetic
molar volume:21,31 · 10-6 m3/ mol
Mohs hardness:2,25
Melting point:271 ° C
Boiling point:1560 ° C
Heat of fusion:10.9 kJ / mol
Heat of vaporization:179 kJ / mol
Thermal conductivity:8 W
Chemical properties
electronegativity:2,02

Did you know that ...

  • Bismuth was used in the Middle Ages as "antibiotics"?
  • China by far the world's most widely funded bismuth?
  • Bismuth 500 years ago was still called bismuth?