JEE Main 2019 Chemistry question
The correct order of atomic radii is:
Answer: (D)
Solution
Eu (half-filled 4f, divalent metallic character) is anomalously large; lanthanoid contraction; N is smallest.
The correct order of atomic radii is:
Eu (half-filled 4f, divalent metallic character) is anomalously large; lanthanoid contraction; N is smallest.