Atomic Nucleus Diagram - Protons and Neutrons Visualized #180140 (License: Personal Use)

This diagram depicts a stable atomic nucleus composed of tightly packed nucleons-red spheres represent positively charged protons, while blue spheres denote neutral neutrons. The arrangement illustrates the strong nuclear force holding the nucleus together despite electrostatic repulsion between protons. Such visualizations are commonly used to teach basic nuclear structure in high school and introductory college physics.

Used in educational websites, textbooks, and science outreach materials to explain atomic structure, nuclear physics, isotopes, and binding energy. Matches user intent for learning or teaching fundamental particle physics concepts.