How the atomic model evolved

Tap any era to see the model, the evidence that built it, and what eventually broke it.

Sources: Britannica "atom" article; "Development of the Atomic Theory", Encyclopedia of Earth (NIH bookshelf); Rutherford 1911 paper on the scattering of α-particles; Bohr 1913 trilogy in Philosophical Magazine; Schrödinger 1926 wave-mechanics papers.