Rhodium (Rh) — Transition metal. Atomic number 45.
Silvery-white metal
- Atomic number: 45
- Symbol: Rh
- Atomic mass: 102.91 u
- Category: Transition metal
- State: Solid
- Melting point: 1963.85 °C / 2237 K
- Boiling point: 3694.85 °C / 3968 K
- Density: 12.41 g/cm³ (20°C)
- Electron configuration: [Kr] 4d8 5s1
- Oxidation states: +1, +2, +3, +4
- Electronegativity: 2.28
- Discovered by: William Hyde Wollaston (1803)
Common uses: Catalytic converters, Jewelry, Mirrors
Biological role: No biological role.
Frequently Asked Questions about Rhodium
What is the atomic number of rhodium?
Rhodium has an atomic number of 45, meaning each atom contains 45 protons in its nucleus.
What is the atomic mass of rhodium?
The standard atomic weight of rhodium is 102.91 u (unified atomic mass units).
What category does rhodium belong to?
Rhodium is classified as a transition metal.
What is the state of rhodium at room temperature?
Rhodium is a solid at 20 °C (68 °F).
What is the melting point of rhodium?
The melting point of rhodium is 1963.85 °C / 2237 K.
What is the boiling point of rhodium?
The boiling point of rhodium is 3694.85 °C / 3968 K.
What is the density of rhodium?
The density of rhodium is 12.41 g/cm³ (20°C).
What is the electronegativity of rhodium?
Rhodium has a Pauling electronegativity of 2.28.
What is the electron configuration of rhodium?
The electron configuration of rhodium is [Kr] 4d8 5s1.
What are the common oxidation states of rhodium?
Rhodium commonly exhibits the following oxidation states: +1, +2, +3, +4.
When was rhodium discovered?
Rhodium was discovered in 1803 by William Hyde Wollaston.
Is rhodium radioactive?
Rhodium is a stable element with no naturally occurring radioactive isotopes.
What is the biological role of rhodium?
No biological role.
What are the common uses of rhodium?
Rhodium is used for: Catalytic converters; Jewelry; Mirrors.
