Question

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

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

Answer 1

Answer: (C)

${Ni^{2+} }$

Answer 2

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