Chemistry Crossword

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Across
  1. 4. regions of space outside nucleus
  2. 7. creator of Periodic Table
  3. 8. properties between a metal and non metal
  4. 9. very outer electrons
  5. 13. element compounds that are in solutions that form hydroxides
  6. 15. absorbs energy
  7. 16. smallest part of an element
  8. 18. mass of an atom of a chemical element
  9. 21. positively charged center of an atom, very high density
  10. 22. any gas in Group O
  11. 23. composed of two or more separate elements
  12. 26. a row of elements
Down
  1. 1. matter can be changed from one form to another
  2. 2. a part or aspect of something abstract
  3. 3. a thin coating of gold, silver, or other metals
  4. 5. same number of protons and electrons
  5. 6. no characteristics of a metal and able to conduct heat
  6. 10. move around nucleus and has a negative charge
  7. 11. releases energy
  8. 12. a substance that takes part in and changes in a reaction
  9. 14. found in nucleus and has a positive charge
  10. 17. in the nucleus and has no electric charge
  11. 19. a group of atoms bonded together
  12. 20. abbreviation or short representation of an element
  13. 24. the result of a chemical reaction
  14. 25. a column of elements