i) D
ii) Giant ionic structure
iii) B is more reactive than E. It has a smaller atomic radius with greater nuclear attraction hence gains electrons more readily.
iv) C has a larger atomic radius than D. It has more protons with the same shielding effect as D hence stronger nuclear attraction.
v) Oxide of C has a higher pH value than a solution of oxide of E. C is a metal, forms a basic oxide. The oxide of E is acidic.
sharon kalunda answered the question on March 28, 2019 at 07:44
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