Contributions of Famous Scientists to Chemistry

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Chemistry is a branch of science that has been around for a long time. Chemistry is dated back as far as prehistoric times. Chemistry has been around for so long that scientist have put it in 4 general chronological categories. These four categories are prehistoric, beginning of the christian era, end of 17th century(alchemy) traditional chemistry and modern chemistry. Some of the very first recorded chemist where men like democritus and aristole. These men where alive in the B.C era and have a lot of influence on how we do modern chemistry today. Starting with Democritus the man who claimed that the atom is the simplest unit of matter. Democritus of ancient greece asked the question could matter be divided into smaller and smaller pieces forever or was there a limit to the number of times a piece of matter could be divided?

Democritus had a theory that it would eventually get to small to cut anymore. This piece would be unable to split anymore. He named this indivivsible matter atomos. To Democritus of Greece, atoms were small, hard particles that were all made of the same material but were different shapes and sizes. He said that they were always moving and capable of being joined together. Aristole of ancient greece added to the theory by declaring the existence of our only four elements: Fire, air, water and earth. All matter is made up of one of these four elements and matter is made up of these four elements and matter had four properties: hot, cold, dry, and wet. Aristotle was born in Stagira in north Greece, the son of Nichomachus, the court physician to the Macedonian royal family. He first studied medicine but was later sent to athens and became a philosophiest under a man named plato.

Alchemy is what became th...

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... each charge had a mass ratio of 1.759E8 coulombs per gram. He concluded that all atoms have this negative charge (through more experiments) and he renamed the cathode rays electrons. His model of the atom showed a sphere of positively charged material with negative electrons stuck in it. Thomson received the 1906 Nobel Prize in physics.

James Chadwickdiscovers the neutron.Enrico Fermi bombards elements with neutrons and produces elements of the next highest atomic number.Nuclear Fission occurred when Fermi bombarded uranium with neutrons. He received the 1938 Nobel Prize in physics.

Albert Einstein also made probably the biggest contribution to chemistry. He was a part of a group of scientist who embarked on a mission to create a atomic fission reaction. It was known as the manhatten project and it created the greatest chemistry invention ever the atomic bomb.

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