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Electronic configuration of some elements is given in Column I and their electron gain enthalpies are given in Column II. Match the electronic configuration with electron gain enthalpy.

Column (I) Electronic configuration

Column (II) Electron gain enthalpy / kJ mol -1
(i)1s^{2}2s^{2}2p^{6} (A) -53
(ii)1s^{2}2s^{2}sp^{6}3s^{1} (B) -328
(iii)1s^{2}2s^{2}2p^{5} (C) -141
(iv)1s^{2}2s^{2}2p^{4} (D) +48


Answers (1)

(i) →(d); (ii) →(a); (iii) →(b); (iv) →(c)

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