Chemistry Question on Importance and Applications of Coordination Compounds

Question

Which of the following element do not form complex with EDTA?

Answer 1

Solution

$Be$ is the only group $2$ element that does not form a stable complex with $[ EDTA ]^{4-} \cdot Mg ^{2+}$ and $Ca ^{2+}$ have the greatest tendency to form complexes with $[ EDTA ]^{4-}$