Also, the “composed of two up quarks and one down quark” is a dramatic simplification, kinda sorta like saying that the valence electrons of an atom are the onl

Also, the “composed of two up quarks and one down quark” is a dramatic simplification, kinda sorta like saying that the valence electrons of an atom are the only electrons. https://i0.wp.com/profmattstrassler.com/wp-content/uploads/2013/04/nucleons31.png https://i0.wp.com/profmattstrassler.com/wp-content/uploads/2... “Fig. 3: A more realistic, though still imperfect, image of protons and neutrons as full of quarks, anti-quarks and gluons, moving around at high speed. More precisely, a proton consists of two up quarks and a down quark plus many gluons (g) plus many quark/anti-quark pairs (u, d, s stand for up, down and strange quarks; anti-quarks are marked with a bar.) The edge of a proton or neutron is not sharp. Ignore the color-coding for now; it will become clearer in future articles.” -- https://profmattstrassler.com/articles-and-posts/particle-physics-basics/the-structure-of-matter/protons-and-neutrons/ https://profmattstrassler.com/articles-and-posts/particle-ph...