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They created a scientific process which would allow for the eventual discovery of an atom
https://prezi.com/t50cihtay12m/alchemy-and-its-contributions-to-the-atomic-theory/#:~:text=By%20Breaking%20down%20the%20chemical,Periodic%20Table%20of%20the%20elements. https://findanyanswer.com/how-did-the-alchemists-contribute-to-the-atom -
Introduced the atomic theory where geometric shapes serve as atoms
https://plato.stanford.edu/entries/plato/ -
Contributed to the atomic theory, he said that everything is made up of tiny pieces and said that different shapes of atoms also give them different properties https://www.famousscientists.org/democritus/ https://www.britannica.com/biography/Democritus -
Discovered atoms must must exist based on the relationships between pressure and gas. He created Boyle's law. https://www.sciencehistory.org/historical-profile/robert-boyle https://www.bbc.co.uk/history/historic_figures/boyle_robert.shtml#:~:text=It%20is%20Boyle's%20Law%20for,'corpuscular%20theory'%20of%20chemistry. -
He is credited as the first person to make use of the balance, he separated oxygen from Hg0 which led him to come up with the Law of Conservation https://www.britannica.com/biography/Antoine-Lavoisier https://www.sciencehistory.org/historical-profile/antoine-laurent-lavoisier -
Made a model of an electron in which the electron is composed of atoms, and all atoms of an element are identical. https://courses.lumenlearning.com/introchem/chapter/john-dalton-and-atomic-theory/ https://www.britannica.com/biography/John-Dalton -
Represents an atom and how everything moves about.
https://www.thinglink.com/scene/698253523942375425 -
Says that equal volume of different gasses contain equal number of molecules https://www.britannica.com/biography/Amedeo-Avogadro -
Found all chemical elements in an atom are arranged at increasing weight -
Discovered the electron, the negatively charged particles in an atom https://www.bulbapp.com/u/atomic-model-timeline~2 http://www.abcte.org/files/previews/chemistry/s1_p5.html#:~:text=In%201897%2C%20J.J.,charged%20particles%20in%20neon%20gas. -
They discovered and isolated radium
https://www.biography.com/scientist/marie-curie -
Mathematically proved the existence of atoms https://www.ans.org/news/article-969/albert-einstein-and-the-most-elemental-atomic-theory/#:~:text=Einstein%20also%20in%201905%20mathematically,use%20of%20statistics%20and%20probability.&text=Atomic%20theory%20says%20that%20any,always%20in%20random%2C%20ceaseless%20motion. -
He was able to determine the electric charge of an electron https://www.britannica.com/biography/Robert-Millikan http://www.nasonline.org/member-directory/deceased-members/20001580.html -
Proposed by JJ Thompson the model explains two properties of atoms that were known at the time: Electrons which are negatively charged and also said that atoms have no electric charge https://www.electrical4u.com/thomsons-plum-pudding-model/ -
Made a model of the atom and labeled a tiny dense positively charged core as the nucleus. https://study.com/academy/lesson/rutherford-model-of-the-atom-definition-diagram-quiz.html#:~:text=Rutherford's%20model%20shows%20that%20an,England%20in%20the%20early%201900s. https://www.britannica.com/science/Rutherford-model -
Made a model of an electron in which the electron is able to occupy only certain orbits around the nucleus. https://www.nobelprize.org/prizes/physics/1922/bohr/biographical/ https://www.livescience.com/32016-niels-bohr-atomic-theory.html -
Demonstrated that major properties of an atom are determined by atomic number not by weight as previously thought. https://www.britannica.com/biography/Henry-Moseley -
Illustrate the whereabouts of the atom. https://thehistoryoftheatomicmodel.weebly.com/solar-system-model.html
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Stated that particles position and movement cannot be known exactly https://www.britannica.com/biography/Werner-Heisenberg#:~:text=Werner%20Heisenberg%20contributed%20to%20atomic,cannot%20both%20be%20known%20exactly.&text=For%20that%20discovery%2C%20he%20was,Prize%20for%20Physics%20for%201932. https://www.nobelprize.org/prizes/physics/1932/heisenberg/facts/ -
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He proved the existence of neutrons. https://www.nobelprize.org/prizes/physics/1935/chadwick/biographical/#:~:text=In%201932%2C%20Chadwick%20made%20a,devoid%20of%20any%20electrical%20charge.
