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Multiple Choice

Consider the following electron configurations to answer the question.

(i)   1s22s22p63s23p64s23d104p65s1

(ii)   1s22s22p63s23p5

(iii)   1s22s22p63s23p64s23d8

(iv)   1s22s22p63s23p64s23d104p6

(v)   1s22s22p43s1

Which represents the ground state electron configuration for a halogen?


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