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What is the general electronic configuration of the halogens?(a) ns^2np^5(b) ns^2np^2(c) ns^2np^3(d) ns^2np^4The question was asked during a job interview.The origin of the question is P-Block topic in chapter P-Block Elements of Chemistry – Class 12

Answer»

The correct choice is (a) ns^2np^5

To explain: The ELEMENTS of group 17 have seven electrons in the valence SHELL and hence their general electronic configuration is ns^2np^5, i.e., ns^2npx^2npy^2npz^1 where n = 2-6. Thus, they contain one electron less than the NEAREST inert GAS configuration.



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