The electron configurations of the 3rd period d-block elements are shown below: The electron configurations for chromium and copper seem anomalous as the 4s orbital is not doubly occupied. However, we ...

p orbital, d orbital, and f orbital refer to orbitals with angular momentum quantum number ℓ = 0, 1, 2, and 3 respectively. These names, together with the value of n, are used to describe the electron ...