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Atomic History

Published on Nov 20, 2015

this about he scientist over the course of a few thousand years theory on an atom

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1.

Atomic History

Kennedy Davis
Photo by ®DS
2.

Democritus

eventually end up with a small particle that cant be cut
Photo by Jeff Kubina
3.

Atomos

Not able to be divided
Photo by Guillem Oliver
4.

John Dalton

  • everything is made of atoms. they cant be created, destroyed or divided
  • atoms of the same element are exactly alike 
  • atoms join with other atoms make new substances
Photo by VinothChandar
5.

John Daltons Model of an Atom

6.

J.J. Thomson

discovered that there are even smaller particles inside an atom
Photo by NASA's Marshall Space Flight Center
7.

Untitled Slide

8.

Cathade-Ray Tube

J.J. Thomson
9.

Ernest Rutherford

 there is an extremely dense positive charge in the center of the atom
Photo by AtmosNews - NCAR & UCAR
10.

Structure of Atom

Kennedy Davis