MCQ
The valence shell electronic configuration of $C{r^{2 + }}$ ion is
- ✓$4{s^o}3{d^4}$
- B$4{s^2}3{d^2}$
- C$4{s^2}3{d^0}$
- D$3{p^6}4{s^2}$
✓
Answer
Correct option: A.
$4{s^o}3{d^4}$
a
(a)Electronic configuration of chromium
(a)Electronic configuration of chromium
$Cr \to [Ar]\,3{d^5}4{s^1}$
$C{r^{2 + }} \to [Ar]3{d^4}4{s^0}$.
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