How would I find/identify the expected electron configuration for: Cr3+, Au3+, Ru2+ Cu+, Mn4+, and Ir3+?
<br>To predict a ground state electronic configuration:
1)Aufbau principle - Lowest energy orbitals fill first
Order of increasing energy:
1s 2s 2p 3s 3p 4s 3d 4p 5s 4d 5p 6s 4f 5d 6p 7s 5f
2) Pauli exclusion principle - No 2 electrons can have the same set of quantum numbers (maximum of 2 electrons per orbital)
3)Hund's rule - When filling degenerate orbitals preserve the maximum ...
The solution is provided with explanation.