Within each element, experiments are grouped into four categories:
(i) A look at the element itself and basic compounds such as oxides, chlorides and sulfates.
(ii) A look at the oxidation states of the element and redox chemistry.
(iii) A look at coordination complexes with common ligands.
(iv) A look at coordination complexes with more exotic ligands.
Green buttons contain experiments.
Orange buttons are placeholders for future development.
Grp. 4 5 6 7 8 9 10 11
The criteria for selecting elements to study was that they must have at least one oxidation state that a stable in aqueous solution which contains a partly filled d shell. Scandium, Yttrium and Lanthanum only exist in the +3 state (i.e. an empty d shell). Ions of Zinc, Cadmium and Mercury only exist with a completely full d shell.
Zirconium, Hafnium and Tantalum are only stable in their group oxidation state +4, +4 and +5 respectively, and therefore only with empty d shells.
Technetium is dangerously radioactive and unavailable.
Niobium does meet the criteria but I have been unable to obtain any compounds and the metal is completely inert, so it is missing.