Three elements have the following Lewis symbols :
`overset(*)A" "*overset(*)underset(*)B*" ":overset(* *)underset(* *)C*`
(a) Place the elements in the appropriate group of the periodic table.
(b) Which elements are most likely to form ions? What is the expected charge on the ions?
(c ) Write the formulae and Lewis structures of the covalent compounds formed between :
(i) A and B
(ii) A and C.

Explanation

(a) A (group 1), B (group 14), C (group 17)
(b) The eleents likely to form ions are A and C, charges `A^(+)C^(-)`,
`A-overset(A)overset(|)underset(A)underset(|)B-A," "A-B`