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NEET2014ChemistryStructure of AtomActual

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 )

Options

  1. AT i 3 +
  2. BN i 2 +
  3. CC r 3 +
  4. DM n 2 +

Correct answer

B. N i 2 +

Step-by-step solution

Magnetic moment is μ = n n + 2 where n = number of unpaired electrons. μ = 2.83 ,   n = 2 So N i 2 + 3 d 8 4 s 0

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