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Dalton: Solid Sphere Model
English Chemist John Dalton proposed a theory in 1803 consisting of four breakthrough discoveries regarding elemental structure and breakdown: 1. All matter is composed of atoms, and these atoms are indivisible and indestructible. -
Thompson: The Plum Pudding Model
The plum pudding model is an early 20th century model of an atom. It was later found to be wrong. It was proposed by J.J. Thomson in 1904, after the electron had been discovered, but before the atomic nucleus was discovered. -
Bohr: The Bohr (Planetary) Model
Niels Bohr proposed the Bohr Model of the Atom in 1915. ... The Bohr Model is a planetary model in which the negatively charged electrons orbit a small, positively charged nucleus similar to the planets orbiting the sun -
schrodinger quantum mechanical model
In 1926 Erwin Schrödinger, an Austrian physicist, took the Bohr atom model one step further. Schrödinger used mathematical equations to describe the likelihood of finding an electron in a certain position.