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Kayla Vlasak 3rd Hour

Published on Nov 22, 2015

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MORE DECKS TO EXPLORE

PRESENTATION OUTLINE

1.

ATOMS

TIMELINE OF ATOMS
Photo by ®DS
2.

DEMOCRITUS 400 BC

ATOMOS THEORY
Photo by micronova
3.

ATOMOS THEORY

  • Meaning "not to be cut"
  • Thought atoms could not be divided into smaller pieces
4.

ARISTOTLE 384-322 BC

EARTH,WIND,WATER,AND FIRE MODEL
Photo by Tilemahos Efthimiadis
5.

EARTH,WIND,WATER AND FIRE

  • He belived that only 4 elements made up everything
  • Everything that was visible was made up of only earth wind fire water
6.

DALTON 1803

BILLARD BALL MODEL
7.

BILLIARD BALL MODEL

  • Believe atoms could not be divided into smaller pieces
  • Could not be destroyed, and everything was one solid element
8.

JJ THOMSON 1897

PLUM PUDDING MODEL
9.

PLUM PUDDING MODEL

  • Experiment was the cathode ray
  • Thought atoms were big positively charged "pudding" or blobs
  • Negitive charge was spread through out "pudding" easily
10.

RUTHERFORD 1911

POSITIVELY CHARGED NUCLUS MODEL
Photo by Curious Expeditions
11.

POSITIVELY CHARGED NUCLEUS MODEL

  • Experiment was gold foil
  • Advancement in understanding with nature and ultrasmall scale
  • Positve charge is crammed inside
12.

MILLIKAN1909

MASS/CHARGE OF ELECTRON
13.

MASS/CHARGE OF ELECTRON

  • Experiment was oil drop
  • Belive both charge and mass of electron are consistent
14.

CHADWICK 1932

PROTON NEUTRON MODEL
15.

PROTON NEUTRON MODEL

  • Most mass of atom is located in the nucleus
  • Very little contribution from the elctron cloud

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