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Thales - 600 BC
Known as the first Scientist -
101
Democritus - 400 BC
The father of modern science. He discovered the atom. -
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Aristotle - 400 BC
Thought that everything was made of the four elements, air, fire, earth, and water. He was wrong. -
Sir Isaac Newton - 1670
Discovered gravity, laws of motion, and the light spectrum. -
John Dalton - 1807
DIscovered the atomic theory. Matter is atoms, indivisible, and indestructable. -
Antoine Henri Becquerel - 1896
Discovered radioactivity. -
JJ Thompson - 1897
Discovered the electron. -
Robert Millikan - 1909
Found mass charge of electrons -
Rutherford - 1911
Gold Foil Experiment, discovered nucleus. -
Niels Bohr - 1913
Discovered how electrons travel around the nucleus. -
Francis Aston - 1919
Mass spectrograph -
Erwin Schrodinger - 1926
Schroedinger's model