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

  • question_answer
    How are the two atoms\[_{92}^{235}P\] and\[_{92}^{238}P\]similar?

    A)  Only (i)

    B)                     Only (i) and (ii)

    C)  Only (i) and (iii)  

    D)  (i), (ii) and (iii)

    Correct Answer: C

    Solution :

     \[_{92}^{235}p\]and \[_{92}^{238}p\]are isotopes having the same atomic number. Hence, the number of protons and electrons are \[92\] each. In two atoms, the number of neutrons are\[(238-92)\]and\[(235-92)\] respectively, i.e.\[,\]\[146,\,\,143\].


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