The History of The Atomic Model
Explore the history of the atomic model, from Democritus’ indivisible atom to Dalton, Faraday, Thomson, Rutherford, Bohr, Schrödinger, and Chadwick. Learn how each scientist’s discoveries shaped our modern quantum model of the atom.
Rules for Significant Figures
Learn the rules of significant figures in chemistry with clear definitions, step-by-step examples, and easy tips for adding, subtracting, multiplying, and dividing with sig figs.