States of Matter and Atomic Structure

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Across
  1. 3. positively charged mass located in the center of the atom
  2. 4. a temperature of Ok
  3. 6. gas or vapor changes directly into a solid
  4. 7. positively charged subatomic particle
  5. 10. result of a force distributed over an area
  6. 11. number of protons in an atom
  7. 13. system releases energy into its surroundings
  8. 15. atoms of the same element that have different numbers of neutrons and different mass numbers
  9. 17. direct relationship between volume and temperature
  10. 18. substance changes from a solid to a gas
  11. 19. changes from liquid to a gas
  12. 20. negatively charged subatomic particle
Down
  1. 1. particle that has no charge
  2. 2. collisions of the vapor and walls of the container
  3. 5. absorbs energy from its surroundings
  4. 7. substance changes from 1 state of matter to another
  5. 8. water gains 2261 joules of energy per gram
  6. 9. the amount of heat necessary to change 1g of a solid to a liquid with no temperature change
  7. 12. substance changes from a gas to a liquid
  8. 14. an inverse relationship between the volume of a gas and the pressure of the gas
  9. 16. number sum of protons and neutrons in the nucleus