2. Questions Bank
  3. JEE Main & Advanced
  4. Chemistry
  5. Structure of Atom / परमाणु संरचना

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

  • 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 [CPMT 1980]

    A)                 26          

    B)                 30

    C)                 36          

    D)                 56

    Correct Answer: B

    Solution :

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


You need to login to perform this action.
You will be redirected in 3 sec spinner