Which of the following ions does not have the | vedclass

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(D) The atomic number of $Ne$ is $10$,and its electronic configuration is $1s^2 \ 2s^2 \ 2p^6$.$F^{-}$ has $9 + 1 = 10$ electrons: $1s^2 \ 2s^2 \ 2p^6

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$Cl^{-}$

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(D) The atomic number of $Ne$ is $10$,and its electronic configuration is $1s^2 \ 2s^2 \ 2p^6$.$F^{-}$ has $9 + 1 = 10$ electrons: $1s^2 \ 2s^2 \ 2p^6$.$Na^{+}$ has $11 - 1 = 10$ electrons: $1s^2 \ 2s^2 \ 2p^6$.$Mg^{2+}$ has $12 - 2 = 10$ electrons: $1s^2 \ 2s^2 \ 2p^6$.$Cl^{-}$ has $17 + 1 = 18$ electrons: $1s^2 \ 2s^2 \ 2p^6 \ 3s^2 \ 3p^6$.Therefore,$Cl^{-}$ does not have the configuration of $Ne$.

Which of the following ions does not have the electronic configuration of neon $(Ne)$?

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