Unit 1 Crossword

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Across
  1. 2. The scientist that created the model of the atom most commonly used today
  2. 3. The scientist that brought back the idea of the atom and came up with atomic theory
  3. 7. Which state of matter has an undefined shape and a defined volume?
  4. 8. The scientist that discovered the nucleus of the atom.
  5. 12. The basic building block for all of matter
  6. 14. An atom or molecule with a charge is called...
  7. 15. An ion with a positive charge is called...
  8. 18. Elements become ions by gaining or losing...
  9. 19. What state of matter something is in depends on its kinetic energy and ____ forces.
  10. 20. Which state of matter has an undefined shape and an undefined volume?
  11. 21. What is the charge of a proton?
Down
  1. 1. Which state of matter has a defined shape and a defined volume?
  2. 4. An ion with a negative charge is called...
  3. 5. What is the charge of an electron?
  4. 6. The scientists that rejected the idea of the atom
  5. 9. Electrons go around the nucleus in areas called...
  6. 10. What is defined as "anything that has mass and takes up space"?
  7. 11. An element's name is determined by its ____ number.
  8. 13. What is defined as "the amount of matter an object has"?
  9. 16. What is the charge of a neutron?
  10. 17. The scientists that discovered the atom/ is the reason we call them "atoms" today