what would be the electronic configuration fm Na+,Al3+,O2-,Cl-

Na+ = 2,8

Al3+ =2,8

O2- = 2,8

Cl- = 2,8,8

As all these are ions, they have lost/gained electrons.

So they will have the Configuration like when they lose/gain electrons

Na = 2,8,1

Al = 2,8,3

O = 2,6

Cl = 2,8,7

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