1.

Which of the following can lose two electrons to attain the configuration of argon?

Answer»

Mg <BR>Br
S
Ca

Solution :`""_(20)Ca=underset(2)(K)""underset(8)L""underset(8)M""underset(2)N`
can LOSE two ELECTRONS to ATTAIN an electronic configuration of
`""_(18)Ar-underset(2)K""underset(8)L""underset(8)M`


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