Q. 104.1( 8 Votes )

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Answer :

(i) The covalent compounds will be formed by only element E.


(ii)The element which is a metal with valency three is: D


(iii) The element which is a non-metal with valency three is: B


(iv) Element D has big size as we go from left to right in a period, due to same number of shells, the size of atoms decreases as the forces of attraction increases between the valence electrons and the nucleus.


(v)Elements C and F belongs to noble gases.


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