Chemical Elements.com - Bismuth (Bi)

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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

Number of Energy Levels: 6

First Energy Level:

Second Energy Level:

Third Energy Level:

Fourth Energy Level:

Fifth Energy Level:

Sixth Energy Level:

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

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