Question

Lanthanides and actinides resemble in

• A. Electronic configuration
• B. Oxidation state
• C. Ionization energy
• D. Formation of complexes

Answer 1

Answer: (A)

Lanthanides and actinides resemble in electronic configuration:
$(n-2)f^{1-14}(n-1)d^{1-10}{n}^{1-2}$