45 Rh 102.906
Rhodium
transition metal
Properties
- Atomic number
- 45
- Atomic mass
- 102.906 u
- Category
- transition metal
- Group
- 9
- Period
- 5
- Block
- d-block
- State (room temp)
- Solid
- Outer-shell electrons
- 1
- Electronegativity
- 2.28 (Pauling)
- Density
- 12.41 g/cm³
- Melting point
- 1963.85 °C
- Boiling point
- 3694.85 °C
Electron configuration
1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s¹ 4d⁸
Noble-gas shorthand: [Kr] 4d⁸ 5s¹
Electrons per shell: 2, 8, 18, 16, 1, which is 1 in the outermost shell.
Related: electron configuration, the Bohr model, valence electrons.
About Rhodium
Rhodium is a chemical element with symbol Rh and atomic number 45. It is a rare, silvery-white, hard, and chemically inert transition metal. It is a member of the platinum group.
- Discovered by William Hyde Wollaston
- Appearance: silvery white metallic
Rhodium: frequently asked questions
- What is Rhodium?
- Rhodium (Rh) is the chemical element with atomic number 45. It is a metal: specifically a transition metal.
- What is the atomic number of Rhodium?
- Rhodium's atomic number is 45, which means every Rhodium atom has 45 protons in its nucleus.
- What is the electron configuration of Rhodium?
- The electron configuration of Rhodium is 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s1 4d8 (noble-gas shorthand: [Kr] 4d8 5s1). Its electrons are arranged in shells of 2, 8, 18, 16, 1, with 1 in the outermost shell.
- Is Rhodium a metal or a nonmetal?
- Rhodium is a metal: specifically a transition metal.
- What group and period is Rhodium in?
- Rhodium is in group 9 and period 5 of the periodic table.
- Is Rhodium a solid, liquid, or gas?
- At room temperature, Rhodium is a solid.
Position in the periodic table
Data compiled from Wikipedia, PubChem, and IUPAC. Source.