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The reason for the stability of Gd^(3+) ...

The reason for the stability of `Gd^(3+)` ion is

A

4f sub shell half-filled

B

4f sub shell completely filled

C

possesses the electronic configuration of noble gases

D

4f sub shell empty

Text Solution

Verified by Experts

The correct Answer is:
A
`Yb gt Eu gt Lu gt Gd gt Ce`
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