Question

2. Iron and manganese are transition metals which have many uses in industry. The electronic configuration for iron, in its ground state, is 1s22s22p63s23p63d64s2 a) in terms of s, p and d orbitals write down the electronic configurations of i. Fe3+ ii. Mn3+ in their ground states.

Answer 1

Fe3+= 1s2 2s2 2p6 3s2 3p6 4s2 3d3
Mn3+= 1s2 2s2 2p6 3s2 3p6 4s2 3d2