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  3. Chemistry
  4. The possible value of l and m for the last electron in the Cl- ion are:

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Q. The possible value of $l$ and $m$ for the last electron in the $Cl^-$ ion are:

Structure of Atom

Solution:

$Cl^{-}_{17} : [Ne] 3s^{2} 3p^{6}$
Last electron enters $3p$ orbital.
$\therefore l = 1$ and $m = 1,0,-1$