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Democritus

Published on Nov 18, 2015

Atom Theory BY Gino Kounelis

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1.

Democritus

  • used philosophy not science 
  • Atoms were indivisible and indestructable
  • Everything is made up of atoms.
2.

John dalton

  • English Chemist
  • He discovered that certain gases could be combined in certain proportions
  • All matter is made up of atoms
3.

JJ Thomoson

  • British Physicist 
  • Interpreted the reflection of the rays of the sun by electrically charged 
  • Discovered positive matter and how rays affect the atom
4.

Ernest Rutherford

  • New Zealand Born Physicist 
  • Atoms are not the smallest unit of mass
  • Positive Nucleus surrounded by a negative
5.

Neils Bohr

  • Danish Physicist 
  • The atom has a small positively charged nucleus 
  • The Nucleus is in a stationary rotation/orbit
6.

Erwin Schrodinger

  • Austrian Physicist 
  • Discovered a equation to find energy waves
  • Electrons orbited around the nucleus 
7.

James Chadwick

  • English Physicist 
  • Discovered the proton a positively charged within the nucleus
  • Found out that Neutrons stabilize the protons

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