A) \[12\]
B) \[15\]
C) \[7\]
D) \[17\]
Correct Answer: D
Solution :
\[Br\] (At. no =35) \[E.C=1{{s}^{2}},2{{s}^{2}}2{{p}^{6}},3{{s}^{2}}3{{p}^{6}}3{{d}^{10}},4{{s}^{2}}4{{p}^{5}}\] \[\therefore \]Br atom has 17 p-electrons.
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