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Basic Information
Name: Rhodium
Symbol: Rh
Atomic Number: 45
Atomic Mass: 102.9055 amu
Melting Point: 1966.0 °C (2239.15 °K, 3570.8 °F)
Boiling Point: 3727.0 °C (4000.15 °K, 6740.6 °F)
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]](Chemical Elements_com - Rhodium (Rh)_files/b0045.gif) |
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 |
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