Answer :
Explanation:
Pseudo-noble gas configuration which can also be called pseudo inert configuration is when elements have fully filled d-orbital, along with s- and p- orbitals. Examples are ions of elements, this is because they lose their valence electrons to be fully filled in order to have a stable octet.
Example of Group 3A(13) ion is Aluminium ion; Al3+. Al3+ takes up the configuration of Neon when it loses its 3 valence electrons.
Electronic configuration of Al and Al3+
Al = [Ne] 3s2 3p1
Al3+ = 1s2 2s2 2p6