![[ATOM]](atom.gif) |
Bismuth
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Information valid for Bi-209 unless otherwise noted
Basic Information
Symbol: Bi
Atomic Number: 83
Mass: 208.98038
Melting Point: 271.3 C
Boiling Point: 1560.0 C
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]](b0083.gif) |
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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
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Isotopes
| Isotope |
Half Life |
| Bi-202 |
1.7 hours |
| Bi-204 |
11.2 hours |
| Bi-205 |
15.3 days |
| Bi-206 |
6.24 days |
| Bi-207 |
32.0 years |
| Bi-208 |
368000.0 years |
| Bi-209 |
Stable |
| Bi-210 |
5.0 days |
| Bi-210m |
3000000.0 years |
| Bi-211 |
2.1 minutes |
| Bi-212 |
1.0 hour |
| Bi-213 |
45.6 minutes |
| Bi-214 |
19.9 minutes |
| Bi-215 |
7.0 minutes |
Facts
Date of Discovery: Known to the ancients
Discoverer: Unknown
Name Origin: From the German word wissmuth (white mass)
Uses: pharmaceuticals, fuses
Obtained From: bismuthine