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Believed all substances were made of Fire, Air, Water and Earth.
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Adopted the formulation of an atom theory of the Universe. The theory stated that there were two elements: atoms and the void in which they exist and move. https://www.youtube.com/watch?v=TgWn91ap99A
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Known for his discovery in the role oxygen plays in combustion.
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Got his own law and said that chemical substances combine to form a small number of compounds.
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Made a Atom Theory that is thought to be true in modern day. All matter is made of atoms and much more. https://www.youtube.com/watch?v=wsYDL6EjV4k
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Best known for his hypothesis that equal volumes of different gases contain an equal number of molecules, provided they are at the same temperature and pressure.
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Discovered the element Thallium and known for his cathode-ray studies.
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Discovered radioactivity which was an early part of the atomic theory.
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Discovered the electron and studied positively
charged particles in neon gas. -
Studied radium and radiation that was an instrumental technology for the future and development of the atomic bomb.
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Treated matter and energy as exchangeable and became famous for his Theory of Relativity. This acted as a base for the release of atomic energy. https://www.youtube.com/watch?v=9BFKqIoqSIY
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His Gold Foil Experiment demonstrated that atoms contained a charged nucleus.
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His discoveries helped position the elements more correctly on the periodic table from their atomic numbers.
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Created a model that showed that an atom is a small, positively charged nucleus surrounded by orbiting electrons. https://www.youtube.com/watch?v=Ucs1Nluy9N4
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He had an oil drop experiment that helped quantify the charge of an electron. This experiment also helped people understand the structure of an atom
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Best known as the originator of the quantum theory. This work helped people with the understanding of the atomic and subatomic processes.
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Research on quantum theory and predicting the wave nature of electrons.
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Due to his theory of quantum mechanics, the allotropic forms of hydrogen was discovered.
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Developed an Electron Cloud Model.
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Figured out that there was an uncharged particle called a neutron. https://www.youtube.com/watch?v=73JJRLd8Yio
