MCQ
$1{s^2}2{s^2}2{p^6}3{s^2}$ is the electronic configuration of the metal
  • A
    $Na$
  • $Mg$
  • C
    $Fe$
  • D
    $Al$

Answer

Correct option: B.
$Mg$
b
$(b)$ On equating no. of ${e^ - }$’s atomic no. is $12$ which is for $Mg$.

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