MCQ
Electronic configuration of $S{c^{21}}$ is
- ✓$1{s^2}2{s^2}2{p^6}3{s^2}3{p^6}4{s^2}3{d^1}$
- B$1{s^2}2{s^2}2{p^6}3{s^2}3{p^6}4{s^1}3{d^2}$
- C$1{s^2}2{s^2}2{p^6}3{s^2}3{p^6}4{s^0}3{d^3}$
- D$1{s^2}2{s^2}2{p^6}3{s^2}3{p^2}4{s^2}3{d^2}$
✓
Answer
Correct option: A.
$1{s^2}2{s^2}2{p^6}3{s^2}3{p^6}4{s^2}3{d^1}$
a
(a) According to Aufbau’s rule.
(a) According to Aufbau’s rule.
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