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ScienceAtomTheoryPpl

QuestionAnswer
John Dalton? Inferred atoms had certain characteristics; proposed atomic theory + model for atoms
J.J Thomson? Found atoms contain negatively-charged particles; creates Thomson Model - positive particles scattered throughout atom (blueberry muffin)
Ernest Rutherford? student of Thomson; countered Thomson Model in gold foil experiment; inferred positive charges clustered together in center as nucleus
Niels Bohr? inferred electrons had certain amounts of energy, causing them to move in only certain orbits (planets around sun)
James Chadwick? Discovered neutrons
Henry Moseley? Discovered how to measure positive charges in atom's nucleus
Dmitri Mendeleev? Created original periodic table; found pattern in elements when arranged in order of atomic mass
Created by: Mindsweeper
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