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