ATOMIC THEORIES

DEMOCRITUS

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

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

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

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

RUTHERFORD

• His model/theory was "Positive Nucleus"
• His experiment was the famous "Gold Foil"
• Rutherfords atomic theory was represented in 1911

ROBERT MILLIKAN

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

CHADWICK

• Chadwicks model/theory was the "Proton/Nuetron"
• His experiment was projecting particles towsrd Beryllium
• His atomic theory was thought of inn1913