24 Cr
Transition metal
Chromium
Gives stainless steel its shine.
Properties of Chromium
- Atomic number (Z)
- 24
- Symbol
- Cr
- Atomic mass
- 51.996 g/mol
- Category
- Transition metal
- Group
- 6
- Period
- 4
- Electron configuration
- [Ar] 3d⁵ 4s¹
- Electronegativity (Pauling)
- 1.66
- Atomic radius
- 166 pm
- First ionization energy
- 653 kJ/mol
- Melting point
- 2180 K (1906.8 °C)
- Boiling point
- 2944 K (2670.8 °C)
- Density
- 7.15 g/cm³
- Phase at 25 °C
- Solid
- Discovered
- Discovered in 1797
Frequently asked questions
What is Chromium?
Chromium (Cr) is a transition metal, element number 24 on the periodic table. Gives stainless steel its shine.
What is the atomic number and atomic mass of Chromium?
Chromium has atomic number 24 and an atomic mass of about 51.996 g/mol.
What is the electron configuration of Chromium?
The electron configuration of Chromium is [Ar] 3d⁵ 4s¹.
Where is Chromium on the periodic table?
Chromium sits in group 6, period 4, and is classified as a transition metal.