A) \[5\]
B) \[17\]
C) \[19\]
D) \[23\]
Correct Answer: B
Solution :
Electronic configuration of \[Br\] is \[1{{s}^{2}}2{{s}^{2}}2{{p}^{6}}3{{s}^{2}}3{{p}^{6}}3{{d}^{10}}4{{s}^{2}}4{{p}^{5}}\] Hence total number of electrons in p-orbital \[=6+6+5=17\]
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