Answer to Question #150398 in General Chemistry for yeye

Question

groups 15-17, write the symbol and charge of the ions in Period 3 that are isoelectronic with argon.

                                    

Answer 1

Ions with the configuration of electronic shell 1s²2s²2p⁶3s²3p⁶ are isoelectronic to argon. In period 3 these are the following ions: Si^4-, P^3-, S^2-, Cl^-.