Identify and explain the trend observed for the atomic radius when moving from top to bottom in the same column on the periodic table.

• A. Atomic radius decreases because the nucleus is getting stronger.
• B. Atomic radius increases because electrons added electrons are placed to degenerate orbitals.
• C. Atomic radius decreases because electrons are located at higher n-values.
• D. Atomic radius increases because electrons are located at higher n-values.
• E. Atomic radius increases because the nucleus is getting stronger.

Answer: (D)