a) i) A and E or C and D
ii) A, B and C
iii) Alkaline earth metals if A and E or
halogens if C and D
b) Atomic radius of B is smaller than that of A. B has
stronger nuclear charge due to more protons hence
pull the energy levels closer to the nucleus
compared to A which has less protons
c) - making aircrafts parts since its light
- making electrical cables since it is a
better conductor of electricity
- extraction of metals like iron
d) D is more reactive than C, D has smaller atomic
radius hence can attract the incoming electron more
easily compared to C which has a larger atomic radius
e) AD2
f) Ionic bond
There is complete transfer of electrons from E to
oxygen
maurice.mutuku answered the question on September 18, 2019 at 09:01
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