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  5. Structure of the Atom

9th Class Science Structure of the Atom Question Bank Structure of the Atom

  • question_answer
    In an element, the number of protons, electrons and neutrons are \[1,\,\,0,\,\,1\] respectively. Identify the element.

    A) \[{{D}^{+}}\]                          

    B) \[{{H}^{+}}\]

    C) \[He\]                           

    D) \[L{{i}^{+}}\]

    Correct Answer: A

    Solution :

    \[_{1}^{2}D\] has \[1\] electron, \[1\] proton and \[1\] neutron, This on ionisation, lost its only one electron and got converted to V. Therefore, \[D+\] has only \[1\] proton and \[1\] neutron.


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