Rh
Rhodium (Atomic Number 45)
Category: transition | Period 5, Group 9 | Block: d
Extremely rare and highly reflective platinum group metal.
Atomic & Physical Constants
- Standard Atomic Weight:
- 102.905502 u
- Standard State Phase:
- Solid
- Electron Configuration:
- 2, 8, 18, 16, 1
- Electronegativity (Pauling):
- 2.28
- Melting Point:
- 2237 K
- Boiling Point:
- 3968 K
Historical Discovery & Real-World Applications
Industrial & Scientific Uses
Automotive catalytic converters, high-reflectivity mirrors
Discovery History
Discovered by William Hyde Wollaston (1803).
Study Rhodium with Socratic AI Tutor
Get step-by-step orbital hybridization, oxidation state derivations, and reaction practice questions.