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NEET AIPMT SOLVED PAPER SCREENING 2004

  • question_answer
    A nucleus represented by the symbol \[_{Z}^{A}X\]has:                                                                                      

    A) Z neutrons and A -Z protons                                              

    B) Z protons and A-Z neutrons

    C) Z protons and A neutrons                   

    D) A protons and Z-A neutrons

    Correct Answer: B

    Solution :

    \[_{Z}{{X}^{A}}\] has number of protons \[=Z\] and number of neutrons \[=A-Z\] where\[A\] is the total number of protons and neutrons i.e., \[\text{A}=\text{Z}+\text{AL}\] NOTE: The proton is nothing but the nucleus of hydrogen atom i.e., a hydrogen atom from which the single orbital electron has been removed.


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