9/6 EC Day

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