MCQ
The outer electronic configuration of $Gd \ (At. \ No. \ 64)$ is
- A$4f^5 \ 5d^4 \ 6s^1$
- ✓$4f^7 \ 5d^1 \ 6s^2$
- C$4f^3 \ 5d^5 \ 6s^2$
- D$4f^4 \ 5d^5 \ 6s^1$
✓
Answer
Correct option: B.
$4f^7 \ 5d^1 \ 6s^2$
b
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