On a chart of the 3d-elements in their periodic table arrangement, identify the complexes and their associated oxidation states that give: (a) tetrahedral and (b) square-planar complexes

On a chart of the 3d-elements in their periodic table arrangement, ide

1.	On a chart of the 3d-elements in their periodic table arrangement, identify the complexes and their associated oxidation states that give: (a) tetrahedral and (b) square-planar complexes
Answer» I THINK it MAY be OPTION a)