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Who Contributed to Atomic Theory

Democritus Started everything with his imagination, discovered that there is an infinite number of atoms and that matter is space and time
Rutherford Gold leaf experiment, discovered atoms have empty space and electrons
Millikan Discovered the mass of electron charge, sprayed oil into chamber using x rays to put charge on oil
Marie Curie Used chemical procedure to separate different substances, radiation came from inside atoms, atoms are divisible, radium, polinium
Bohr Bohr model, hydrogen element, positively charged nucleus surrounding small electrons, based on solar system
Einstein theoretic scientist, E=mc^2, helped make atomic bombs
Mendeleev made periodic table, weighed atomic masses of elements then organized them onto chart
Thomson Discovered atoms have electrons, used cathode ray tubes and magnetic fields
Dalton used atomic weights and gases, divided atomic theory into 4 parts based on others findings
Created by: syd324



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