What is the common oxidation state of scandium? (At. No. of Sc = 21)(a) +4(b) +3(c) +1(d) +5This question was addressed to me by my school teacher while I was bunking the class.I'd like to ask this question from Electronic Configurations of the D-Block Elements topic in chapter D and F-Block Elements of Chemistry – Class 12

What is the common oxidation state of scandium? (At. No. of Sc = 21)(a

1.	What is the common oxidation state of scandium? (At. No. of Sc = 21)(a) +4(b) +3(c) +1(d) +5This question was addressed to me by my school teacher while I was bunking the class.I'd like to ask this question from Electronic Configurations of the D-Block Elements topic in chapter D and F-Block Elements of Chemistry – Class 12
Answer» Correct choice is (b) +3 Easiest explanation: The properties of SCANDIUM compounds are intermediate between those of aluminium and yttrium. A diagonal relationship EXISTS between the behaviour of MAGNESIUM and scandium, just as there is between beryllium and aluminium. In the chemical compounds of the elements in group 3, the PREDOMINANT oxidation STATE is +3.

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