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The 'spin only' magnetic moment value of MO^2- 4 is ____ BM.

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The 'spin only' magnetic moment value of \(MO _4 {^{2-}}\) is ___ BM. (Where M is a metal having least metallic radii Sc, Ti, V, Cr, Mn and Zn).

(Given atomic number : Sc = 21, Ti = 22, V = 23, Cr = 24, Mn = 25 and Zn = 30)

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Metal having least metallic radii among Sc, Ti, V, Cr, Mn & Zn is Cr.

Spin only magnetic moment of \(CrO _4 {^{2-}}.\)

Here \(Cr^{+6}\) is in \(d^0\) configuration (diamagnetic).

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