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AtomicTheory-Develop
Scientists and expirements that developed the atomic theory.
| Question | Answer |
|---|---|
| Who created the Law of Conserved Mass? | Lavoisier |
| What does the Law of Conserved Mass state? | All mass is conserved in a chemical reaction |
| Who created the Law of Definite Proportions? | Proust |
| 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 |
| Who proposed that matter is made up of small particles called atoms(Atomic theory)? | Dalton |
| 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. |
| Who did the Cathode Ray Experiment? | Thomson |
| What did Thomson liken an atom to? | Plum Pudding |
| Thomson proposed that atoms are made up of what two parts? | Positive "stuff" and removble electrons |
| What experiment did Rutherford conduct? | Gold Foil Experiment |
| The Gold Foil Experiment lead to the idea of atoms consisting of what two things? | A dense positive neucleus and low-mass electrons |
| Who discovered/confirmed neutrons? | Chadwick |
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