Phase Change/Periodic Table Review

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Across
  1. 2. The change in state from a liquid to a solid
  2. 4. The change of state from a liquid to a gas
  3. 8. The temperature at which a substance changes from a solid to a liquid
  4. 13. Name for the stable elements found in group 18
  5. 15. The change in state from a solid directly to a gas without passing through the liquid state
  6. 18. Vaporization that occurs at and below the surface of a liquid
  7. 19. Subatomic particle found in the nucleus of the atom. Has a positive charge
  8. 20. The change in state from a gas to a liquid
  9. 21. A change/reaction in which energy is absorbed
  10. 23. The process by which molecules at the surface of a liquid absorb enough energy to change to a gas
  11. 24. A change/reaction in which energy is released
  12. 25. Horizontal rows on the periodic table which tell the number of electron shells
Down
  1. 1. The change in state from a solid to a liquid
  2. 3. Solid that is made up of crystals in which particles are arranged in a regular, repeating pattern
  3. 5. Element with the atomic number 6.
  4. 6. Vertical columns on the periodic table which tell the number of valence electrons
  5. 7. Subatomic particle found in the nucleus of the atom. Has a neutral charge
  6. 9. Subatomic particle which orbits the nucleus in shells. Has a negative charge
  7. 10. A state of matter that has no definite shape but has a definite volume
  8. 11. A state of matter that has a definite shape and a definite volume
  9. 12. Element found in period 3 group 17
  10. 14. Solid made up of particles that are not arranged in a regular pattern
  11. 16. Whole number used to identify each element. Equals the number of Protons
  12. 17. The temperature at which a liquid boils
  13. 22. A state of matter with no definite shape or volume