Chemistry Crossword - Jhuan 9B

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Across
  1. 2. the vertical columns in the periodic table of elements
  2. 4. a new substance produced in a chemical reaction
  3. 7. extremely reactive non-metals
  4. 11. often a liquid or gas at room temperature (can be solids sometimes, aren't malleable, do not conduct electricity, and usually has no lustre
  5. 13. a particle with a negative charge
  6. 15. _______ ____ model, created by John Dalton
  7. 16. is a chemical reaction that takes place in the cells in your body
  8. 17. reacts to air and water: less reactive than alkaline metals
  9. 18. is a fast chemical reaction that occurs whens oxygen reacts with a substance to form a new substance; gives off energy
  10. 20. releases heat (example: fire)
  11. 22. "The Father of Modern Chemistry"
  12. 24. a particle with a neutral charge
Down
  1. 1. the horizontal rows in the periodic table of elements
  2. 3. a substance that reacts with another substance in a chemical reaction to create a new substance with different products or properties
  3. 5. takes place when two or more substances combine to form new ones
  4. 6. a very reactive metal, especially in air and water
  5. 8. have mixed properties of both metals and non-metals
  6. 9. absorbs heat (example: ice pack)
  7. 10. compounds that consist of ions (a group of atoms that have become electrically charged)
  8. 12. a very stable and unreactive gas
  9. 14. the sum two non-metals combining, forming a pure substance called a _________.
  10. 19. a particle with a positive charge
  11. 21. Solids at room temperature, often malleable, often has lustre, and conducts electricity
  12. 23. one of the three factors of the fire triangle