Write down the number of 3d electrons in each of the following ions:Ti – InterviewSolution

InterviewSolution

1.

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 5d orbitals to be occupied for these hydrated ions (octahedral).

Answer»

Metal ion	No. of d - e^-	Filling of d-orbital
Ti²⁺	2	t²₂g
V²⁺	3	t₂³g
Cr³⁺	3	t₂³g
Mn²⁺	5	t₂³ge²g
Fe²⁺	6	t₂⁴ge²g
Fe³⁺	5	t₂³ge²g
CO²⁺	7	t₂⁵ge²g
Ni²⁺	8	t₂⁶ge²g
Cu²⁺	9	t₂⁶ge³g

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