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Atomic Theory Timeline
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Actualizado 14 oct 2018
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kendell faircloth
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Democritus discovers the concept of an atom and the atomic theory.
Erwin Schrodinger develops wave equation.
Erwin Schrodinger figures out where electrons are positioned.
Werner Heisenberg creates on Quantum Mechanics document
Antoine Lavoisier started experiments to prove the combustion theory.
Antoine Lavoisier implies the law of conservation.
Wolfgang Pauli creates the Pauli Exclusion Principle (electrons cannot be in the same place at the same time).
Amedeo Avogadro creates Avagadro's Law (v/m =K) and Avagadro's Constant.
Niels Bohr creates the Bohr model.
Robert Milikan conducts the oil drop experiment (charge of electron).
Marie Curie discovers polonium and radium and also creates the term "radioactivity".
Paul Dirac creates the equation to calculate atomic properties and the wave equation. He also discovered that protons have the same amount of electrons when an atom is neutral.
Joseph Luis Gay-Lussac creates Gay-Lussac Law and discovers boron.
Max Planck creates the quantum theory matter can gain/loose energy in certain amounts).
J.J. Thomson creates the Plum-pudding model. He also discovers that electrons existed and atoms have a charge.
Dmitri Mendeleev created the periodic table and discovered gallium, scandium, germanium, rhenium, technetium.
James Chadwick discovered neutrons.
John Dalton discovered atoms are different elements combined in simple whole numbers to form compounds and created Dalton's atomic theory.
Ernest Rutherford conducted the gold foil experiment, in which he discovered every atom has a nucleus where it stores all of its positive charge and mass. He also revised atom model and theory, as well as he was the first to split an atom.
Eugen Goldstein discovered protons and canal rays.
Robert Boyle created Boyle's law. (P1V1=P2V2) p= pressure v= volume
Sir Williams Crookes studied the effects of sending an electric current through a glass sealed tube.
Henry Mosely discovered mathematical patterns between x-rays spectrums of elements and atomic numbers
Hans Geiger determined the atom has a massive, charged nucleus and performed the Geiger-Marsden gold foil experiment
Períodos
Aristotle performs experiments to prove that empty space cannot exist.
Louis de Broglie creates the electron wave theory.
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