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
    The nucleus of the element having atomic number 25 and atomic weight 55 will contain [CPMT 1986; MP PMT 1987]

    A)                 25 protons and 30 neutrons

    B)                 25 neutrons and 30 protons

    C)                 55 protons

    D)                 55 neutrons

    Correct Answer: A

    Solution :

                    No. of protons = Atomic no. = 25 and no. of neutron = 55 ? 25 = 30.


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