Write down the number of 3d electrons in each of the following ions: Ti2+, V2+, Cr3+, Mn2+, Fe2+, Fe3+, CO2+, Ni2+ and Cu2+. Indicate how would you expect the five 3d orbitals to be occupied for these hydrated ions (octahedral).
Answers
The number of 3d electrons in each of the following ions are as follows :
Metal ion Number of 3d-electrons Filling of d-orbitals
Ti2+ → 2 → t22g
V2+ → 3 → t32g
Cr3+ → 3 → t32g
Mn2+ → 5 → t32g e2g
Fe2+ → 6 → t42g e2g
Fe3+ → 5 → t32g e2g
CO2+ → 7 → t52g e2g
Ni2+ → 8 → t62g e2g
Cu2+ → 9 → t62g e3g
Hope this answer will help you…..
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Answer:
Metal ion
Number of d-electrons
Filling of d-orbitals
Ti2+ 2 t22g
V2+ 3 t32g
Cr3+ 3 t32g
Mn2+ 5 t32g e2g
Fe2+ 6 t42g e2g
Fe3+ 5 t32g e2g
CO2+ 7 t52g e2g
Ni2+ 8 t62g e2g
Cu2+ 9 t62g e3g
Explanation: