Question

Magnetic moment 2.84 B.M. is given by (At. nos, Ni=28, Ti=22, Cr=24, Co=27)

• A. $\ce{ Cr^{2+} }$
• B. $\ce{Co^{2+} }$
• C. $\ce{Ni^{2+} }$
• D. $\ce{Ti^{3+} }$

Answer 1

Answer: (C)

$\ce{Ni^{2+} }$

Answer 2

$\sqrt{n(n+2)} = 2.84$ $\Rightarrow \, n = 2$ $Ni^{+2}$