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NEET Chemistry Structure of Atom / परमाणु संरचना NEET PYQ-Structure of Atom

  • question_answer
    The number of protons, neutrons and electrons in \[_{\,\,71}^{175}Lu\], respectively, are                  [NEET 2020]

    A)  104, 71 and 71

    B)       71, 71 and 104

    C)  175, 104 and 71

    D)       71, 104 and 71

    Correct Answer: D

    Solution :

    [d] \[_{\,\,71}^{175}Lu\]
    No. of Protons = 71 = No. of Electrons
    No. of Neutrons = Mass no. – No. of Protons
    \[=17571\]
    \[=104\]


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