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Democritus introduced the Idea of the Atom as the building block of matter.
(Source : https://www.britannica.com/biography/Democritus) -
Plato discovered that there are only five shapes whose sides are made from regular polygons, and believed that one of these had to be the shape of the atom. -
Created the Philosopher's stone
(Source : https://www.alchemergy.net/articles/The_Philosophers_Stone-Hauck.pdf ) -
Discovered Boyle's Law, the First Gas Law of Many. (Source : https://www.famousscientists.org/robert-boyle/) -
Discovered Oxygen
(Source : https://www.britannica.com/biography/Antoine-Lavoisier) -
Came up with the First Atomic Theory of Matter
(Source : https://www.britannica.com/biography/John-Dalton) -
discovered that an equal volumes of different gasses contain the same amount of molecules as long as they are at the same temperature and pressure.
(Source : https://www.britannica.com/biography/Amedeo-Avogadro ) -
Dmitri Mendeleev made the first periodic table of elements.
(Source : https://www.britannica.com/biography/Dmitri-Mendeleev ) -
JJ Thompson discovered the Electron.
(Source : https://www.britannica.com/biography/J-J-Thomson ) -
Marie Curie discovered Radium and Polonium.
(Source: https://www.britannica.com/biography/Marie-Curie ) -
Theory of Relativity- E=MC[2]
(source : https://www.britannica.com/biography/Albert-Einstein) -
Robert Millikan determined the magnitude of the charge of the electron.
(Source : https://www.britannica.com/biography/Robert-Millikan ) -
Niels Bohr proposed a theory for the Hydrogen Atom in 1913 (Source: https://www.nobelprize.org/prizes/physics/1922/bohr/biographical/) -
Created Moseley's law.
(Source : https://www.britannica.com/biography/Henry-Moseley ) -
Ernest Rutherford was known for his studies of Radioactivity, as well as his studies of the atom. He won the Copley medal for it in 1922.
(source : https://www.nobelprize.org/prizes/chemistry/1908/rutherford/biographical/) -
Discovered that the position and momentum of an object cannot both be known in exacts.
(Source : https://www.britannica.com/biography/Werner-Heisenberg ) -
Made the Schrodinger equation to calculate the hydrogen atom's energy level.
(Source : https://www.britannica.com/biography/Erwin-Schrodinger ) -
James Chadwick proved the existence of neutrons
(Source : https://www.britannica.com/biography/James-Chadwick )