MCQ
An element has the electronic configuration $1{s^2},2{s^2}2{p^6},3{s^2}3{p^2}$. Its valency electrons are
- A$6$
- B$2$
- C$3$
- ✓$4$
✓
Answer
Correct option: D.
$4$
d
(d) An element has the electronic configuration $1{s^2},\,2{s^2}\,2{p^6},\,\,3{s^2}\,3{p^2},\,(Si)$. It’s valency electrons are four.
(d) An element has the electronic configuration $1{s^2},\,2{s^2}\,2{p^6},\,\,3{s^2}\,3{p^2},\,(Si)$. It’s valency electrons are four.
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