hi, i know that zinc and scandium aren’t transition metals because they form ions with complete d sub shells, but i don’t understand why they lose electrons in the 4s sub shell first if they aren’t transition elements ? is it due to the fact that it’s still a d block element ?
Zn: 1s2 2s2 2p6 3s2 3p6 4s2 3d10
Zn2+: 1s2 2s2 2p6 3s2 3p6 3d10