![[ATOM]](atom.gif) |
Rhodium
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Information valid for Rh-103 unless otherwise noted
Basic Information
Symbol: Rh
Atomic Number: 45
Mass: 102.9055
Melting Point: 1966.0 C
Boiling Point: 3727.0 C
Number of Protons/Electrons: 45
Number of Neutrons: 58
Classification: Transition Metal
Crystal Structure: Cubic
Density @ 293 K: 12.41 g/cm3
Color: silverish
Atomic Structure
![[Bohr Model of Rhodium]](b0045.gif) |
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Number of Energy Levels: 5
First Energy Level: 2
Second Energy Level: 8
Third Energy Level: 18
Fourth Energy Level: 16
Fifth Energy Level: 1
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Isotopes
| Isotope |
Half Life |
| Rh-101 |
3.3 years |
| Rh-101m |
4.35 days |
| Rh-102 |
2.9 years |
| Rh-102m |
207.0 days |
| Rh-103 |
Stable |
| Rh-103m |
56.12 minutes |
| Rh-105 |
35.36 hours |
| Rh-105m |
40.0 seconds |
| Rh-106 |
29.9 seconds |
Facts
Date of Discovery: 1803
Discoverer: William Wollaston
Name Origin: From the Greek word rhodon (rose)
Uses: coatings
Obtained From: by-product of nickel production