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The d-and f-Block Elements
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27/03/2022 1:55 pm
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Calculate the number of unpaired electrons in the following gaseous ions: Mn3+, Cr3+, V3+ and Ti3+. Which one of these is the most stable in aqueous solution?
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27/03/2022 2:00 pm
(i) Mn3+, [Ar]3d4 → 4
(ii) Cr3+, [Ar]3d3 → 3
(iii) V3+, [Ar]3d2 → 2
(iv) Ti3+, [Ar]3d1 → 1
Cr3+ is the most stable in aqueous solutions owing to a t2g3 configuration.