d and f BLOCK ELEMENTS Quiz

• The metal is in a high oxidation state and strongly attracts electrons.
• They readily accept protons.
• They are always ionic compounds.
• The metal is in a low oxidation state and can easily donate electrons or oxide ions.

• It readily gains nine electrons to achieve a stable d10 configuration.
• It readily loses the single d-electron to achieve the stable d0 configuration.
• It forms stable complexes easily.
• It is stable due to minimal electron-electron repulsion.

• Both are strongly reducing
• Cr2+ (d4) can easily lose an electron to achieve a stable d3 (half-filled) configuration, while Mn3+ (d4) can gain an electron to achieve a stable d5 (half-filled) configuration.
• Both are strongly oxidizing
• Their redox properties are unrelated to their d-electron count

• Scandium (Sc)
• Titanium (Ti)
• Copper (Cu)
• Zinc (Zn)

• Iron (Fe)
• Chromium (Cr)
• Manganese (Mn)
• They are equally easy