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Q 3133001842.     (z) Assign the position of elements having
outer electronic configuration:
(a) `ns^2 np^4` for `n = 3`
(b) `(n - 1) d^2 ns^2` for `n = 4`
(ii) Among the elements `B, Al, C` and `Si`
(a) which has the highest first ionization enthalpy?
(b) which has the most negative electron gain enthalpy?
(c) which has the largest atomic radius?
(d) which has the most metallic character?
(Provided By a Student and Checked/Corrected by EXXAMM.com Team)