Chemistry Crossword

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Across
  1. 4. a table showing all elements grouped from lowest atomic number to highest atomic number.
  2. 5. the wave's height from the origin to a crest to a trough
  3. 7. heat transfer through currents
  4. 8. heat transfer by touch
  5. 10. energy absorbed by the reaction of its surroundings
  6. 14. the amount of energy needed to activate atoms
  7. 17. the weighted average of the masses
  8. 19. the measure of disorder in a system
  9. 21. energy of motion
  10. 22. minimum amount of energy that can be gained or lost by an atom
  11. 23. heat transfer through waves
  12. 25. electrons in the outermost shell
Down
  1. 1. the number of waves that pass a given point per second
  2. 2. negatively charged atom
  3. 3. the smallest unit of matter
  4. 6. energy at rest
  5. 9. total heat content of an atom
  6. 11. neutral charged atom
  7. 12. positively charged atom
  8. 13. a charged particle
  9. 15. the study of how heat is involved in chemical reactions
  10. 16. an atom with the same element but different number of neutrons and mass
  11. 18. the shortest distance between equivalent points on a continuous wave
  12. 20. the electron arrangement in an atom
  13. 24. energy released by the reaction of its surroundings