Scientists and expirements that developed the atomic theory.
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| Who created the Law of Conserved Mass? | Lavoisier
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| What does the Law of Conserved Mass state? | All mass is conserved in a chemical reaction
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| Who created the Law of Definite Proportions? | Proust
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| What does the Law of Definite Proportions state? | Different samples of the same compound always contain the constituent elements in the same proportion by mass
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| Who proposed that matter is made up of small particles called atoms(Atomic theory)? | Dalton
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| What are the four parts of the Atomic theory proposed by Dalton? | 1. Indivisable atoms
2. Atoms of the same element are the same and atoms of different elements are different
3. Different elements that are mixed or combined create compound/mixtures of whole numbers
4. Atoms cannot be created or destoyed.
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| Who did the Cathode Ray Experiment? | Thomson
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| What did Thomson liken an atom to? | Plum Pudding
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| Thomson proposed that atoms are made up of what two parts? | Positive "stuff" and removble electrons
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| What experiment did Rutherford conduct? | Gold Foil Experiment
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| The Gold Foil Experiment lead to the idea of atoms consisting of what two things? | A dense positive neucleus and low-mass electrons
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| Who discovered/confirmed neutrons? | Chadwick
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