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scientist test

Modified atomic theory to include atomic number Moseley
Used the idea of quanta (discrete units of energy) to explain hot glowing matter Planck
Rejected the idea of atoms Aristotle
Discovered the electron Thomson
Developed plum pudding model of the atom Thomson
Equal volumes of gasses at the same temperature and pressure have the same number of molecules Avogadro
Developed "planetary model" of the atom from the "gold foil" experiment Rutherford
Law of definite proportions Proust
First woman to win Nobel prize Curie
Proposed that the electron has only certain allowable energy states (energy levels) Bohr
The volumes of reacting gasses and gaseous products are in a ratio of small whole numbers Gay-Lussac
Discovered the mass and charge of the electron. First American to win Nobel prize Millikan
Discovered x-rays. Roentgen
First atomic theory based on experimental evidence. Law of multiple proportions Dalton
Coined the word atom. Believed there were different atoms for different types of material Democritus
Discovered protons Goldstein
Law of conservation of mass. Father of Chemistry Lavoisier
Discovered neutrons Chadwick
Discovered radioactivity Becquerel
Created by: Brana



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