Element: Bismuth (Bi)

Element (Atom) NameBismuth
Physical state at room temperatureSolid
Element ClassificationMetal
Group NamePnictogen
Period Number (Periodic table) 6
Group number (Periodic table)15
Atomic number83
Atomic weight208.98040 (Ref: Jlab-ele083, ciaaw-bismuth, Nist-83)
209.0 (Ref: Lanl-83)
Atomic Radius207 pm (Van der Waals) (Ref: Lanl-83)
Density9.807 g/cm3 (Ref: Jlab-ele083)
Melting point271.40°C (Ref: Jlab-ele083)
271.5 °C (Ref: Lanl-83)
Boiling point1564°C (Ref: Jlab-ele083, Lanl-83)
Electron shell configuration1s2 
2s2 2p6 
3s2 3p6 3d10 
4s2 4p6 4d10 4f14 
5s2 5p6 5d10
6s2 6p3
Oxidation States+5, +3 (Ref: Jlab-ele083)
5, 4, 3, 2, 1, -1, -2, -3 (Ref: Lanl-83)
Ionization Energy7.289 eV (Ref: Jlab-ele083)
7.285516 eV (Ref: Nist-83)
Number of Stable Isotopes0
InChIInChI=1S/Bi (Ref: Pubchem-83)


  • Jlab-ele083: https://education.jlab.org/itselemental/ele083.html
  • Lanl-83: https://periodic.lanl.gov/83.shtml
  • ciaaw-bismuth: https://www.ciaaw.org/bismuth.htm
  • Nist-83: https://physics.nist.gov/cgi-bin/Elements/elInfo.pl?element=83
  • Pubchem-83: https://pubchem.ncbi.nlm.nih.gov/element/83
  • science.co.il: https://www.science.co.il/elements/

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