Chemistry

Question Analysis
This question assesses the student's understanding of periodic trends, specifically the trend of atomic radius down a group.

Key Concept Explanation
Atomic radius generally increases as you move down a group due to the addition of new electron shells, which outweighs the increased nuclear charge.

Step-by-step Solution
1. Identify the elements in Group 16: O, S, Se, and Te.
2. Compare their positions in the periodic table: O (Period 2), S (Period 3), Se (Period 4), and Te (Period 5).
3. As you move down a group, the atomic radius inc...