Chemistry Crossword Puzzle

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Across
  1. 2. very hard metal that is used in stainless steel and rechargeable batteries
  2. 5. comes in white or red colors and used in fertilizers, food preservation and matches
  3. 9. the kind of charges that attract
  4. 11. the man who was the first to organize the elements
  5. 14. the chart that shows all the elements
  6. 17. the number of known elements
  7. 18. brimstone in the Bible and smells like rotten eggs
  8. 19. used to make graphite and diamonds
  9. 23. the number that shows the mass of an atom in the periodic table
  10. 26. tiny particles that swarm at tremendous speed around the nucleus of an atom
  11. 28. the study of what substances are made of and how one substance can be changed into another
  12. 29. amount of matter in one unit of volume
  13. 32. the densest metal
  14. 33. the number of protons found in an atom
  15. 34. 1000 grams
  16. 35. the tiny particles in the nucleus that have a neutral charge
Down
  1. 1. the kind of charges that repel
  2. 3. substance composed of only one type of atom
  3. 4. the group of elements that come in a variety of colors and are not good conductors of heat/electricity
  4. 6. colorless and odorless gas that is very flammable and we did an experiment to show this
  5. 7. semimetal found in sand, quartz and glass and used in computer chips
  6. 8. colorless and odorless gas that is found in air, water, rocks and minerals and used in welding torches and medical settings
  7. 10. the tiny particles in the nucleus that have a positive charge
  8. 12. anything that takes up space and has mass
  9. 13. the term used to describe how the electrons form a shield around the nucleus
  10. 15. used in galvanized steel such as chain link fences and trashcans
  11. 16. the group of elements that have a silvery color and are good conductors of heat/electricity
  12. 20. tiny particles that composes all matter
  13. 21. amount of matter that makes up an object
  14. 22. measure of the pull of gravity on an object
  15. 24. center of the atom that is a dense core made up of protons and neutrons
  16. 25. things made up of matter
  17. 27. metal that is applied to polished steel to protect from rusting
  18. 30. colorless and odorless gas used in fertilizers and explosives
  19. 31. metric unit used to measure an object's mass