_files/bi.jpeg){kind=small}
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]](Chemical Elements_com - Bismuth (Bi)_files/b0083.gif) |
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 |
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