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JEE Main & Advanced Chemistry Structure of Atom / परमाणु संरचना Question Bank Atomic number, Mass number Atomic species

  • question_answer
    The atomic number of an element is 35 and mass number is 81. The number of electrons in the outer most shell is [UPSEAT 2001]

    A)                 7             

    B)                 6

    C)                 5             

    D)                 3

    Correct Answer: A

    Solution :

                    Bromine consists of outer most electronic configuration \[[Ar]\,\,3{{d}^{10}}\,4{{s}^{2}}\,4{{p}^{5}}\].


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