Chemistry Review

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Across
  1. 4. Electrons travel in set orbits
  2. 6. Has a trunk
  3. 7. One of the first people to state that matter is made up of atoms was?
  4. 8. Has a negative charge
  5. 13. Large marsupial
  6. 14. How many protons does an atom of carbon have?
  7. 17. The base unit of a chemical element
Down
  1. 1. Who used the gold foil experiment?
  2. 2. Has the same number of protons but different number of electrons
  3. 3. What is also the same number as the atomic number?
  4. 5. Has no electric charger
  5. 8. What is made up of atoms
  6. 9. Likes to chase mice
  7. 10. Where are the protons and neutrons located in an atom?
  8. 11. Who proposed the plum pudding model?
  9. 12. Who is credited with the modern atomic theory?
  10. 15. Flying mammal
  11. 16. Man's best friend