1. The ions Na+ and Mg2+ occur in chemical compounds, but the ions Na2+ and Mg3+ do not.
Explain.
The ions Na+ and Mg2+ occur in chemical compounds, but the ions Na2+ and Mg3+ do not.
Explain.
Solution
Electronic configuration of Na is 1s2 2s2 2p6 3s1 which is [Ne]3s1
After losing 1 electron, it attains noble gas configuration. So, it forms Na+ ion
Removing 2nd electron is not possible as it has noble gas configuration now and its very stable.
So, it can’t form Na2+
Similar is the scenario with Mg
Electronic configuration of Mg is 1s2 2s2 2p6 3s2 which is [Ne]3s2
After losing 2 electron, it attains noble gas configuration. So, it forms Mg2+ ion
Removing 3rd electron is not possible as it has noble gas configuration now and its very stable.
So, it can’t form Mg3+