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karmwood96
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"Laughing Philosopher"
1st.
"Don't"
Democritus.
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What contributions did Democritus make?
- Atoms are the smallest unit piece of matter
- "Atomos"
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What does the Democritus's model say/look like?
- Shape/size depend on object.
- Basic shapes.
- ex. circle, square, triangle
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Who is the father of modern atomic theory?
Dalton
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Father of modern atomic theory
"Drink."
Dalton.
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His experiement dealt with combining elements to form compounds?
Dalton
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What contributions did Dalton make?
- Said element are the same shape and had the same matching atoms. (Later found false)
- Atoms are combined in whole number rations to make compounds
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Said element are the same shape and had the same matching atoms. (Later found false)
Atoms are combined in whole number rations to make compounds
Dalton's Contributions.
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Whose experiment...
combined elements to form compounds?
Dalton
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All matter has atoms
The atom is an indivisible sphere
Dalton's model
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What did Dalton's model say?
- All matter had atoms
- The atom was an indivisible sphere
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Improved Dalton's theory.
"The"
Thomson
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What was Thomson's experiment?
Cathode Ray Experiment
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What did the Cathode Ray Experiment do?
- Cathode rays were passed through a magnetic field.
- Atoms attracted to pos. magnet
- Ray are negative electrons
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Rays are negative what?
Rays are negative electrons.
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