Scientits that Invented atoms

Democritus

Ancient Greek philosopher who conceptualized matter as being composed of indivisible particles called 'atomos' (uncuttable).

John Dalton

Developed the first modern atomic theory, proposing atoms are indivisible, atoms of an element are identical, compounds form from combinations of atoms, and chemical reactions rearrange atoms, based on experimental evidence.

J.J. Thomson

Discovered the electron using cathode ray tubes and proposed the 'Plum Pudding' model, where negative electrons are embedded in a sphere of positive charge.

Ernest Rutherford

Conducted the Gold Foil Experiment, leading to the discovery of the atom's small, dense, positively charged nucleus and the planetary model of the atom; also discovered the proton.

Niels Bohr

Proposed the Bohr Model, stating that electrons orbit the nucleus in specific, quantized energy levels, explaining the discrete spectral lines of hydrogen.

Erwin Schrödinger

Developed the Quantum Mechanical Model using the Schrödinger wave equation to describe the probability of finding an electron in a region of space (an orbital), introducing the concept of electron clouds.

James Chadwick

Discovered the neutron, a neutral particle with a mass similar to a proton, which completed the understanding of the atomic nucleus and explained isotopes.