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CMC Medical CMC-Medical VELLORE Solved Paper-2008

  • question_answer
    \[{}^{39}A{{r}_{18}}\] and \[{}^{40}{{K}_{19}}\] are

    A)  isotopes             

    B)  isobars

    C)  isotones             

    D)  isosters

    E)  isodiaphers

    Correct Answer: C

    Solution :

                    Atoms having the same number of neutrons are termed as isotones. \[e{{g}^{39}}A{{r}_{18}}(39-18=21),\] \[{}^{40}{{K}_{19}}(40-19=21)\]


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