SATHEE: The dand fblock elements

The dand fblock elements - Result Question 7

####7. Magnetic moment 2.83 BM is given by which of the following ions?

(At. nos. $T i = 22, C r = 24, M n = 25, N i = 28$ ):-

[2014]

(a) $T i^{3 +}$

(b) $N i^{2 +}$

(d) $M n^{2 +}$

Show Answer

Solution:

(b) Magnetic moment

$μ = \sqrt{n (n + 2)}$

$2.83 = \sqrt{n (n + 2)}$

On solving $n = 2$

$N i^{2 +}$ has two unpaired electrons.

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The dand fblock elements - Result Question 7

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