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Atomic Theory
Category:
Other
Updated:
19 Dec 2019
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Created by
Rylee Quade
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Events
Marie & Pierre Curie- Discovered radium and polonium - the rays she theorized came from the elements atomic structure
John Dalton - identified the heredity nature of red-green colorblindness - proposed a theory that all matter is made up of atoms that are invisible and indestructible
James Chadwick- discovered neutrons - neutrons are located in the center of an atom
Ernest Rutherford- Discovered nucleus of the atom - demonstrated that the atom has a tiny and heavy nucleus
J.J. Thomson- identified the heredity nature of red-green colorblindness - proposed a theory that all matter is made up of atoms that are invisible and indestructible
Democritus- developed concept of the ‘atom’ - believed everything in the universe was made up of atoms.
Joseph Louis Proust- discovered the law of constant compensation , the law states that if a compound is broken down the masses will have the same proportions regardless of the original substance
Neils Bohr- proposed a theory for the hydrogen atom based on quantum theory- stated that electrons should move around the nucleus only in prescribed orbits.
Michael Faraday- discovered electromagnetic induction, he believed that the atom had more than just negatively charged they had another electrical component.
Erwin Schrodinger-his wave equation is used to find the allowed energy level of quantum mechanical systems, such as atoms.
Antoine Lavoisier- discovered the role oxygen plays in combustion, the first person to make g ood use of balance
Periods
Robert Millikan-discovered the study of elementary electronic charge and the photoelectric effect, the electrons are what helps atoms stick together
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