d and f BLOCK ELEMENTS

What section of the periodic table do the transition elements (d-block) occupy?

• Left side
• Right side
• Middle section
• Top rows

Which of the following properties is NOT typically associated with transition metals?

• Variable oxidation states
• Formation of colored compounds
• High melting points
• Forming only ionic compounds

What is the term used to describe the gradual decrease in ionic radii of the actinoids across the series?

• Lanthanide contraction
• d-block contraction
• Actinide contraction
• f-block expansion

Which of the following d-block elements is liquid at room temperature?

• Iron
• Copper
• Zinc
• Mercury

Which of the following is a characteristic feature of the f-block elements related to their atomic spectra?

• Broad spectral lines
• Continuous spectra
• Sharp spectral lines
• No spectral lines