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12 Cards in this Set

  • Front
  • Back

Aristotle

Matter is continuous

Democritus

Matter is continuous 'atamos'

Robert boyel

Studied gas and indiv particles instead of continuous mass

Antoine lavosier

Law of conservation of mass

Joseph proust

Law of constant composition

John dalton

Took work of previous scientists and made four postulates

Daltons atomic theory

Matter is made of atoms, atoms of an element are identical, elements form whole ratios to make compounds, matter is not cteate or destroy in chem rx

J. J thomson

Discovered the electron

Robert millikan

Determined mass and charge of electron

Rutherford

Gold foil experiment led to current atom model

Rutherford conclusion

Atom is mostly empty space with postive charge center e are scatteted randomly in empty space

James chadwick

Discovered nuetrons