The Architecture of Atoms

Every object is made of atoms. Inside atoms is a layered architecture of particles, forces, and fields that took a century of experiment and theory to uncover.

The deeper physicists looked, the more unexpected the structure became. The nucleus is held together by a force that operates only across distances smaller than the atom itself. The mass of matter originates not from its constituents but from a field that permeates all of space. The particles inside the proton cannot be extracted and observed in isolation. And the theory that describes all of this, the Standard Model, is simultaneously the most successful and the most incomplete framework in the history of science.

This is a seven-article series tracing that structure from the nuclear chart to the Standard Model.