Honors Chemistry Scientists Study
Guide
Democritus - Answer️️ -Matter is made of "indivisible parts" he called atomos
"meaning cannot be cut"
Democritus - Answer️️ -Because of his ideas, we still call these particles atoms
Dalton - Answer️️ -Proposed that atoms are small indivisibl...
Democritus - Answer✔️✔️-Matter is made of "indivisible parts" he called atomos
"meaning cannot be cut"
Democritus - Answer✔️✔️-Because of his ideas, we still call these particles atoms
Dalton - Answer✔️✔️-Proposed that atoms are small indivisible spheres
Dalton's Atomic Model - Answer✔️✔️-Billard Ball model and was hard sphere
(model)
J.J Thompson - Answer✔️✔️-He did experiments with cathode ray tubes.
J.J Thompson - Answer✔️✔️-He found that all atoms contain a little particle called
electron.
Thompson's Atomic Model - Answer✔️✔️--called "Plum Pudding" or "Raisin Bun"
-was called positive dough with negative electrons like raisins scattered throughout
(model)
Rutherford - Answer✔️✔️-He did the gold foil experiment.
Rutherford - Answer✔️✔️-He did experiments with radioactive Polonium which emitted
positive particles called alpha particles.
Rutherford - Answer✔️✔️-In an experiment, he shot the positive alpha particles through a
piece of gold foil and then onto a screen.
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