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  4. Common oxidation state of scandium, a transition is/are [Ar. No. of Sc = 21]

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Q. Common oxidation state of scandium, a transition is/are [Ar. No. of Sc = 21]

The d-and f-Block Elements

Solution:

Sc (Z = 21): $[Ar]^{18} \, 4s^2 2d^1$
Common oxidation states of Sc can be +2 and +3