WB JEE Medical WB JEE Medical Solved Paper-2010

  • question_answer
    If a species has 16 protons, 18 electrons and 16 neutrons, find the species and its charge.

    A)  \[{{S}^{-1}}\]                                    

    B)  \[S{{i}^{2-}}\]

    C)  \[{{P}^{3-}}\]                                   

    D)  \[{{S}^{2-}}\]

    Correct Answer: D

    Solution :

                     \[16\,p\]means \[Z=16\]\[18{{e}^{-}}\]means 2 unit negative charge is present. Hence, species is \[{{S}^{2-}}.\]


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