| Name | rhodium |
|---|---|
| Symbol | Rh |
| Atomic Weight | 102.90550 |
| Atomic Number | 45 |
| CAS ID | 7440-16-6 |
| Group Number | 9 |
| Group Name | Precious Metal |
| Period Number | 5 |
| Origin of Name | Greek, rhodon = "rose" |
| Year Discovered | 1803 |
| Discovery Credits | W. H. Wollaston at London, UK. |
| Class | Metallic |
| Color | Silvery White Metallic |
| Standard State | Solid at 77 F & 298 K |
| Description | Rare, lustrous, silvery, hard mental of the platinum group.
Stable in air up to 875 K. Inert to all acids, attacked by fused alkalis.
Used as a catalyst. Diagnostic tests: |