Question #14448

1 Answer
Jul 22, 2017

Answer:

Chromium number 24 has 6 valance electrons.

Explanation:

The outer or valance configuration of Chromium is
# 4s^2 3d^4# This configuration can give rise to multiple oxidation states or charges for Chromium. Each of these ions that are formed have different properties and form different colors. This is why Chromium is named Chromium meaning color.

The atom can lose the 3 d electrons becoming +4. It can lose the 4s electrons become +2, It can lose the 4s and 3d electrons becoming 6+ It can shift one 4s electron into the d orbitals to create a half filled d orbitals resulting in either +1 or + 5.

There are only six valance electrons but they can be combined in multiple ways