Question

please answer me this question right now.

Answer 1

This may help you....

Answer 2

(i) For the elements having electrons in their outermost shell less than 3...Group will be the number of electrons in the valence shell...So For element C , the group will be 2 as the number of electron in the outermost shell is less than 3...

If elements having electrons in their ouetrmost shell more than 2 then Element will belong to group 10 + No. of electron present in outermost shell( This rule is generally works well for group 13 -18 )

Now as the number electrons in the outermost shell is more than 2...
So element A belong to group 10 + 3 = 13 and Element B belong to 10 + 4 = 14..

(ii) Elements A and C can loose their electrons from their outermost shell to acheieve their neighbouring gas configration and to from cation..Generally metals have tendency to loose electrons or are good electron donorSo A and C are Metals...B neither can loose nor gain the electron...

(iii) A and C will form ionic Bond by transferring of elwctrons whereas B will form Covalant bond by sharing of electrons...