Haryana PMT Haryana PMT Solved Paper-2004

  • question_answer The number of p-electrons in bromine atom is:

    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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