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Review Quiz Unit 4- Atomic Structure Name:_________________________ Date: ________ Period: ________ Use your notes or the book to answer the following questions. You will be given credit for completing as well as for your answers. I. For questions 1-10 select from the following choices: A. Aristotle B. Democritus D. Thomson E. Rutherford C. Dalton ___E_ 1. Provided evidence of a denser, positively charged mass in the center of an atom ___B_ 2. Thought that matter was made of tiny particles that could not be divided ___D_ 3. Provided evidence that an atom contains negatively charged particles ___A_ 4. Stated that matter could be grouped into air, water, fire and earth ___C_ 5. Stated that when elements combine in a compound, the ratio of their masses is always the same ___E_ 6. Used the gold foil experiment ___D_ 7. Proposed the plum pudding model of the atom ___D_ 8. First to prove that atoms are made of smaller subatomic particles. ___E_ 9. Showed that atoms are mostly empty space. ___B_ 10. Called the tiny particles of matter “atomos” II. For questions 11-21 select from the following choices (you may have more than one selection for some answers): A. proton B. neutron C. electron ___A_ 11. The atomic number equals the number of ___B_ 12. The mass number minus the atomic number equals the number of _A, B_ 13. Included in the mass number ___A_ 14. Positive charge ___C__ 15. Negative charge ___B_ 16. Neutral charge ___C_ 17. Located around the outside of the nucleus _A, B_ 18. Located inside the nucleus _A, B_ 19. Have about the same mass ___B__20. Determines the isotopes for any element ___A__21. This is unique for every element