MCQ
Correct configuration of $F{e^{ + 3}}$ $[26] $ is
  • $1{s^2},2{s^2}2{p^6},3{s^2}3{p^6}3{d^5}$
  • B
    $1{s^2},2{s^2}s{p^6},3{s^2}3{p^6}3{d^3},4{s^2}$
  • C
    $1{s^2},2{s^2}2{p^6},3{s^2}3{p^6}3{d^6},4{s^2}$
  • D
    $1{s^2},2{s^2}2{p^6},3{s^2}3{p^6}3{d^5},4{s^1}$

Answer

Correct option: A.
$1{s^2},2{s^2}2{p^6},3{s^2}3{p^6}3{d^5}$
a
It’s Obvious
 

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