NEET · Chemistry · STD 12 - 4. d and f- block elements
Gadolinium belongs to \(4f\) series. Its atomic number is \(64.\) Which of the following is the correct electronic configuration of gadolinium?
- A \([Xe] 4f^9 5s^1\)
- B \([X e] 4f^7 5d^1 6s^2\)
- C \([Xe] 4f^65d^26s^2\)
- D \([Xe] 4f^86d^2\)
Answer & Solution
Correct Answer
(B) \([X e] 4f^7 5d^1 6s^2\)
Step-by-step Solution
Detailed explanation
Electronic configuration of Gadolinium, with atomic number \(64\) is [Xe] \(4 f^7 5 d^1 6 s^2\) as half filled orbitals are more stable than incompletely filled orbitals.
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