Which of the Following Pairs of D-Block Metals Will Have

question 40

Multiple Choice

Which of the following pairs of d-block metals will have approximately the same atomic radii owing to the lanthanide contraction?

• A) Iron and ruthenium
• B) Ruthenium and rhodium
• C) Ruthenium and osmium
• D) Osmium and iridium
• E) Cobalt and nickel