Question

trivalent
(15. Which of the following
lanthanide ion is diamagnetic?
(b) Nd+
(d) Tm+3
(a) Lu+3
(c) Pr+3​

Answer 1

Answer:

a

Explanation:

sorry I didn't saw that ln3+ . it is right

Answer 2

As you can see from the attachment, only Lu shows paired electrons in all orbitals.

All the others' electrons remain unpaired and so they are paramagnetic.

Lu is diamagnetic.

So correct answer is Lu+3.

Thank u

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@spyder