A first row transition metal with highest enthalpy of atomisation, upon reaction with oxygen at high temperature forms oxides of formula M2On (where n = 3,4,5). The 'spin-only' magnetic moment value o

Question

A first row transition metal with highest enthalpy of atomisation, upon reaction with oxygen at high temperature forms oxides of formula M2On (where n = 3,4,5). The 'spin-only' magnetic moment value of the amphoteric oxide from the above oxides is___ BM (near integer) (Given atomic number : Sc : 21, Ti : 22, V : 23, Cr : 24, Mn : 25, Fe : 26, Co : 27, Ni : 28 ,Cu : 29, Zn : 30)

Prashant Kotian · Accepted Answer

Correct answer: .. 'V' has highest enthalpy of atomisation (515 kJ/mol) among first row transition elements. V2O5 Here 'V' is in +5 oxidation state V+5  1s2 2s2 2p6 3s2 3p6 (no unpaired electrons)

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