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Bismuth at Chemical Elements.com
Basic Information | Atomic Structure | Isotopes | Related Links | Citing This Page

Basic Information

Name: Bismuth
Symbol: Bi
Atomic Number: 83
Atomic Mass: 208.98038 amu
Melting Point: 271.3 °C (544.45 K, 520.33997 °F)
Boiling Point: 1560.0 °C (1833.15 K, 2840.0 °F)
Number of Protons/Electrons: 83
Number of Neutrons: 126
Classification: Other Metals
Crystal Structure: Rhombohedral
Density @ 293 K: 9.8 g/cm3
Color: white

Atomic Structure

[Bohr Model of Bismuth]  
Number of Energy Levels: 6

    First Energy Level: 2
    Second Energy Level: 8
    Third Energy Level: 18
    Fourth Energy Level: 32
    Fifth Energy Level: 18
    Sixth Energy Level: 5


Isotope Half Life
Bi-2021.7 hours
Bi-20411.2 hours
Bi-20515.3 days
Bi-2066.24 days
Bi-20732.0 years
Bi-208368000.0 years
Bi-2105.0 days
Bi-210m3000000.0 years
Bi-2112.1 minutes
Bi-2121.0 hour
Bi-21345.6 minutes
Bi-21419.9 minutes
Bi-2157.0 minutes


Date of Discovery: Known to the ancients
Discoverer: Unknown
Name Origin: From the German word wissmuth (white mass)
Uses: pharmaceuticals, fuses
Obtained From: bismuthine

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