MCQ
An element has the electronic configuration $1{s^2},2{s^2}2{p^6},$ $3{s^2}3{p^6}3{d^5},\,4{s^1}$. It is a
- A$s$-block element
- B$p$-block element
- ✓$d$-block element
- DInert gas
✓
Answer
Correct option: C.
$d$-block element
c
$(c)$ $d$-block. As the last ${e^ - }$ enters in $d$-subshell.
$(c)$ $d$-block. As the last ${e^ - }$ enters in $d$-subshell.
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