KcetD And F Block ElementsKCET 2021MCQ+1 / -02021Which one of the following is correct for all elements from Sc to Cu?AThe lowest oxidation state shown by them is +2B\(4 s\) orbital is completely filled in the ground stateC\(3 d\) orbital is not completely filled in the ground stateDThe ions in +2 oxidation states are paramagneticCheck AnswerClear SelectionReveal AnswerShow Explanation