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460-370 B.C. Democritus
Democritus was a greek philosipher, who believed all sensation is a form of touch resulting from atoms colliding with the sense organs.He thinks that the senses reveal a lot of colors, smells, and tastes while, in reality, only atoms and the void exist. -
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384-322 B.C Aristotle
Aristotle was the first philosopher to analyze the process where certain hypothesis can be logically inferred to be true. -
1766-1844 John Dalton
Daltons first theory states that each chemical element is composed of its own kind of atoms, all with the same weight. It says why a fixed weight of one substance always combines with a fixed weight of another substance in forming a compound. -
1871- 1937 Rutherford 1909
Rutherford became the first to break up the nucleus of an atom. Rutherford and Fredrick Soddy, a british chemist, proved that radioactive elements give off electrically charged particles known as alpha and beta particles. -
1856-1940 Thompson
He discovered the electron and the isotopes. Thomson was awarded the 1906 Nobel Prize in Physics for the discovery of the electron. -
1871- 1937 Ruthford 1911
Rtherford was the first to establish the nuclear model of the atom in 1911. -
1885- 1962 Bohr
In 1922 Bohr won the noble prize in physics for his hard work on atomic stucture. Later in the 1930's Bohr studied the nucleus of the atom and quantum machanics. -
1887-1961 Schrodinger and Heisenberg
Schrodinger developed the equation known as the "Schrodinger Equation" this equation was developed in 1925 and was introduced in 1926. Heisenberg studied the spectra that is given off by atoms. These studies led him to make the matrix machanics. Matrix machanics is a form of quantum machanics that provides a mathmatical description of electron orbits.
