Atomic Structure Question 189

Question: The “spin-only” magnetic moment [in units of Bohr magnet on, ( μB )] of Ni2+ in aqueous solution would be: (At. no. Ni = 28)

Options:

A) 1.73

B) 2.84

C) 4.90

D) 0

Show Answer

Answer:

Correct Answer: B

Solution:

  • Ni=28=[Ar]183d84s2;Ni2+=[Ar]183d8

Ni2+ has two unpaired electrons.
μ=n(n+2)

=8=2.84BM



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