9th Class Science Structure of the Atom Question Bank Atomic Structure HOTS Subjective Problems

  • question_answer
    There are 10 electrons in each of the species\[{{A}^{+1}}\],\[{{D}^{+2}},{{C}^{+3}}\]. If the number of neutrons in them are 12, 12 and 14 respectively, then choose the right option regarding their atomic number and mass number.

    Answer:

    The number of electrons, neutrons in\[{{A}^{+1}}\]are 10, 12 respectively. Therefore the atomic number (Z) = 11 and mass number = 23. The number of electrons, neutrons in\[{{D}^{+2}}\]are 10, 12 respectively. Therefore the atomic number (Z) = 12 and mass number = 24. The number of electrons, neutrons in\[{{C}^{+3}}\]are 10, 14 respectively. Therefore the atomic number (Z) = 13 and mass number = 27.


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