Chemistry study guide

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Across
  1. 3. rows
  2. 4. gas element that makes up group 18 in the periodic table
  3. 5. Mendeleev created the periodic table
  4. 6. no energy given off
  5. 8. smallest part of a substance that has all the properties of that substance
  6. 9. short representation of a chemical element
  7. 10. carrying negative charge
  8. 11. a thing that is composed of 2 or more elements
  9. 16. Smallest part of an element
  10. 17. wht changes in a chemical reaction
  11. 18. of conservation of mass total amount of mass within substance
  12. 19. columns
Down
  1. 1. metal emement that lacks most of the properties of a metal
  2. 2. carries no charge
  3. 3. what comes out
  4. 6. energy given off
  5. 7. an element that has metals,solid and non metal
  6. 10. substance consisting of atom
  7. 12. element that has the property of shiny rushy ductility and malleability
  8. 13. the positively charged center of the atom
  9. 14. Carring positive charge
  10. 15. mass the mass of an atomic particle