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Atomic Theory

Published on Nov 18, 2015

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PRESENTATION OUTLINE

Atomic Theory

By: Steve Tuttle

Democritus

  • Used philosophy, not science
  • Atoms were indivisible and indestructible
  • Everything is made up of atoms

John dalton

  •  Atoms have no internal sturcture
  • All elements are composed of atoms
  • Atoms are indestructible and retain their identity in chemical reactions

J.j. thomson

  • A British scientist, discovers electrons
  • Used him "plum pudding" model
  • He pictures electrons embedded in a sphere

Ernest Rutherford

  • A New Zealand physicist
  • Atom has small dense positive nucleus
  • Electrons move around the nucleus

neils bohr

  • Niels Henrik David Bohr was a Danish physicist
  • made foundational contributions to understanding atomic structure and quantum theory
  • Received the Nobel Prize in Physics in 1922

erwin schrodinger

  • Austrian physicist
  • Formed the basis of wave mechanics
  • was the author of many works in various fields of physics

james chadwick

  • English physicist
  • awarded the 1935 Nobel Prize in physics for his discovery of the neutron in 1932
  • head of the British scientists who worked on the Manhattan Project during World War II