Theories of Matter Timeline
Category: Altro
è stato aggiornato: 4 nov 2018
Autori
Created byJulia Moscaluk
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DemocratisAristotleRobert BoyleJohn DaltonJ.J. ThomsonErnest RutherfordNiels BohrJames ChadwickPeriodi
He said that everything in the world was made up of tiny bits, surrounded by empty space. He also said that these bits vary in size and shape. He called them "atomos". Most of the scientists during that time disagreed with him.He disagreed with Democratis, and his thoughts. He said that matter was made up of four elements; earth, wind, water, and fire. Most scientists of his time agreed.He thought that matter was made up of tiny particles, which is a major part of the modern theory of matter. He was sometimes called the "first modern chemist". He is best known for the Boyle's Law.He challenged Aristotle's thoughts. He showed that common substances always broke down into the same elements, and defined elements into pure substances. He also found out that matter could neither be created or destroyed.He discovered the electron. He also said that atoms were uniformly packed spheres of positive matter, filled with negatively charged atoms. He won a Nobel Prize for his discovery, but his thoughts didn't last long in the news.Known as the "father of the nuclear age". he didn't agree with Thomson. His thoughts were that atoms consisted mostly of empty space with just a few electrons, while most of the mass was in the center of the atom. He called this mass the nucleus.He expanded on Rutherford's model of an atom. He explained that electrons orbit the nucleus at fixed energies and distances. He won the Nobel Prize for Physics in 1922.He discovered the Proton and the Neutron in the nucleus. He also won a Nobel Prize in this year.Atoms are now said to be a cloud of electrons surrounded by a nucleus.
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