Chemistry Crossword

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Across
  1. 3. the amount of mass in a given volume of substance
  2. 5. The purte substances on the periodic table
  3. 6. Number of protons in a nucleus
  4. 7. Invisible negatively charged particle that orbits the neclues of an atom
  5. 9. A reaction that takes place when two or more substances form new substances
  6. 11. A Chemical reaction that absorbs heat energy
  7. 12. The most reactive element
  8. 15. When an element changes from one state to another
  9. 17. The table of Elements
  10. 18. Neutral particle in a nucleus of an atom
  11. 19. Most reactive non metal
  12. 20. An experiment in which is one or more products of a chemical reaction can escape
  13. 21. A Chemical reaction that releases heat energy
  14. 24. Gas, Solid and Liquid
Down
  1. 1. something that resists electricity
  2. 2. Smallest part of a element
  3. 4. A compound made from metal and non-metal
  4. 8. Slow chemical change that occurs when oxygen in the air reacts with metal
  5. 9. Change that results when two or more substances react to create a different substance or substances
  6. 10. The symbol of Oxygen
  7. 13. Change of state from solid to liquid
  8. 14. Change of state from liquid to solid
  9. 16. Water's chemical formula
  10. 22. Combining of pure substance
  11. 23. Vertical column of elements in the periodic table