Element with pseudo octet configuration in its outermost shell

• After gaining or losing an electron, the pseudo – inert gas configuration has '18' electrons instead of '8' electrons in the (n-1) shell electronic configuration.
• Complete ground state electronic configuration for the Palladium atom, 

                   1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰