Copy of Atomic Theory Progression
Published on Nov 21, 2015
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PRESENTATION OUTLINE
ATOMIC THEORIES
WHAT WE KNOW
DEMOCRITUS
400 B.C.
DEMOCRITUS
- Democritus theory/model was "Atoms"
- His experiment was based off of Seahshell powder
- No known Model Drawing
- Year was in 400 B.C.
ARISTOTLE
340 B.C.
ARISTOTLE
- His model/theory was Earth,Wind, Fire, and Water
- His experiment was based off of his theory
- No known model drawing
- The year he made his theory/model was 340 B.C.
JOHN DALTON
ROUGHLY BETWEEN 1766-1844
JOHN DALTON
- His model/theory was Billiard Boards
- His experiment was reactions of things and recombined sunbstances
- Model/ theory was official between 1766-1844
JJ THOMPSON
1897
JJ THOMSON
- His model/theory was "Plum Pudding"
- His experiment was with positive particles and neon gas
- His model/theory was official in 1897
HAYES RUTHERFORD
1911
RUTHERFORD
- His model/theory was "Positive Nucleus"
- His experiment was the famous "Gold Foil"
- Rutherfords atomic theory was represented in 1911
ROBERT MILLIKAN
BETWEEN 1908-1917
MILLIKAN
- Millikans fist model/theory was "mass( change of electron)
- His experiment was known as the "Oil Drop"
- His atomic theory was represented between years 1908-1917
JAMES CHADWICK
1913
CHADWICK
- Chadwicks model/theory was the "Proton/Nuetron"
- His experiment was projecting particles towsrd Beryllium
- His atomic theory was thought of inn1913
