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JEE Main & Advanced Chemistry Structure of Atom / परमाणु संरचना Question Bank Topic Test - Structure of Atom (4-5-21)

  • question_answer
    An atom has 26 electrons and its atomic weight is 56. The number of neutrons in the nucleus of the atom will be

    A) 26

    B) 30

    C) 36

    D) 56

    Correct Answer: B

    Solution :

    [b]  \[_{26}{{X}^{56}}\] \[A=P+N=Z+N=E+N\]             \[N=A-E=56-26=30\]


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