Single Choice

Which of the following ions having the following electronic structure would have a maximum magnetic moment?

A$$1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}4s^23d^{3}$$
B$$1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}4s^23d^{5}$$
Correct Answer
C$$1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}4s^23d^{7}$$
D$$1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}4s^23d^{9}$$

Solution

Magnetic moment = $$\sqrt{n(n+2)}$$, where n is no. of unpaired electrons.

Higher the number of unpaired electrons, higher is the magnetic moment.

Number of unpaired electrons are maximum in option B (5 unpaired electrons).

Option A and C: 3 unpaired electrons.

Option D: 1 unpaired electron.

SIMILAR QUESTIONS

d - block and f - block Elements

Select the correct order with respect to paramagnetic property of the ions.

d - block and f - block Elements

The magnetic moment of $$[Cu(NH_{3})_{4}]^{2+}$$ was found to be 1.73 B.M. The number of unpaired electrons in the complex is:

d - block and f - block Elements

Titanium shows the magnetic moment of 1.73 B.M. in its compound. What is the oxidation number of $$Ti$$ in the compound?

d - block and f - block Elements

The correct order of the spin-only magnetic moment of metal ions in the following low spin complexes, $$[V(CN)_6]^{4-}, [Fe(CN)_6]^{4-}$$, $$[Ru(NH_3)_6]^{3+}, $$ and $$[Cr(NH)_3)_6]^{2+}$$, is:

d - block and f - block Elements

The calculated spin-only magnetic moments (BM) of the anionic and cationic species of $$[Fe(H_2O)_6]_2$$ and $$[Fe(CN)_6]$$, respectively, are:

d - block and f - block Elements

Consider the hydrates ions of $$Ti^{2+}, V^{2+}, Ti^{3+}$$ and $$Sc^{3+}$$. The correct order of their spin-only magnetic moments is:

d - block and f - block Elements

The INCORRECT statement is:

d - block and f - block Elements

The correct order of spin-only magnetic moments among the following is: (Atomic number: $$Mn=25, Co=27, Ni=28, Zn=30)$$.

d - block and f - block Elements

Which of the following transition metal ions will have definite value of magnetic moment?

d - block and f - block Elements

Which of the following has the highest paramagnetism?

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