Chemistry

Question Analysis
This question assesses the ability to arrange elements in order of increasing atomic radius based on their positions in the periodic table.

Key Concept Explanation
Atomic radius decreases as you move from left to right across a period due to the increasing nuclear charge, which pulls the valence electrons closer to the nucleus. Elements in the same period can be compared directly.

Step-by-step Solution
1. Identify the period: F, O, N, C are all in Period 2 of the periodic table.
2. Recall the period trend: Atomic radius decreases from left to right (increasing atomic number).
3. Locate element positions (left to right): C (Group 14) →...