Atomic Nucleus Diagram - Protons and Neutrons in a Stable Core #16772 (License: Personal Use)

This diagram depicts a stable atomic nucleus composed of tightly packed protons (red) and neutrons (blue), illustrating the strong nuclear force holding nucleons together. The spheres are rendered with glossy shading to emphasize their discrete, particle-like nature against a black background, enhancing visual clarity for educational use.

Commonly used in high school and undergraduate physics textbooks, online learning modules, and science infographics to explain nuclear structure, isotopes, and binding energy. Matches user intent for conceptual understanding of atomic composition.