Atoms Timeline

Aristotle: How the poser contradicted any front patterns? -He argued against the theories of Greek philosopher Leucippus of Miletus and his learner Democritus of Abdera in the 5th hundred B.C Contribution? -He believed that a piece of point could be divided up an uncounted number of times. He suggested that everything in this world was made up of some faction of four elements: earth, fire, water, and air. The elements were acted upon by the two forces of gravitational force and levity. His surmise held two forces conflict and harmony. Aristotles theory was apply for nearly 2000 familys, until after the scientific revolution. The year/century the sham was adopted? -384 322 B.C. Henri Becquerel: How the model contradicted any previous models? -He compel scientists to change their imaginations virtually atomic structure. Contribution? -His discovery of radiation syndrome in uracil forced scientists to change their ideas about atomic structure. Radioac tivity show that the atom was neither indivisible nor immutable. The year/century the model was adopted? -1896 Niels Bohr: How the model contradicted any previous models? -Bohr made improvements to Ernest Rutherfords model with the implementation of Max Plancks new idea of quanta. Contribution?

-He proposed that electrons existed at gravel trains of aught at doctor distances from the nucleus. If the atom absorbed energy, the electron jumped to a level come along from the nucleus: if it lost energy it fell to a level closer to the nucleus. They year/century the model was adopted? -1913 pack C hadwick: Contribution? -Chadwick proved t! he introduction of neutrons. For his discovery, he was awarded the Hughes Medal of the princely Society in 1932, and afterwards the Nobel Prize for Physics in 1935. The year/century the model was adopted? -1931 Marie & Pierre curie: Contribution? -Pierre Curie and his wife Marie Curie stated that hot materials cause atoms to pick up down...If you want to get a full essay, order it on our website: OrderCustomPaper.com

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