Valence Electrons in Chromium (Cr)

Calculate the number of valence electrons in Chromium using its electron configuration step by step.

Enter the atomic number or symbol of any element, and this calculator will calculate its valence electrons with steps.

Valence Electrons in Chromium

Determine the number of valence electrons in Chromium (Cr, Element 24)

Step 1: Look up the electronic configuration for Chromium

The abbreviated (condensed) ground electronic configuration for Chromium is:

[Ar] 3d5 4s1

Calculate Electronic Configuration for Chromium

Step 2: Identify the outermost electrons using the electronic configuration

Electrons in atomic orbitals outside the [Ar] core are the outermost electrons:

3d5 4s1

Step 3: Use the principle quantum number to identify the valence electrons

Extract the principle quantum number, n, and number of electrons from the electron configuration:

Electron ConfigurationnOrbitalNumber of Electrons

The outermost electrons with the largest principal quantum number (in this case, n = 4) are valence electrons.


Chromium (Cr) has 1 valence electron(s).

Lewis Dot for Cr