Chemistry Study Guide

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Across
  1. 2. developed periodic table
  2. 7. to form by combining separate things
  3. 8. positive charge
  4. 9. a chemical element that lacks he characteristics of a metal
  5. 11. characterized by or formed with evolution of heat
  6. 12. the smallest particle of a substance of that can exist by itself
  7. 13. electron(s) in outermost orbital
  8. 16. positive charge
  9. 19. the rows going left to right on the periodic table
  10. 20. also known as atomic weight
  11. 22. center of an atom made of protons and neutrons
  12. 23. any group of rare gases with great stability (helium, neon, argon, krypton)
  13. 24. the columns that going up and down on the periodic table
Down
  1. 1. the smallest possible amount of a substance that has the same characteristics
  2. 3. a substance that usually has a shiny appearance, good conducted of electricity
  3. 4. states that the total number of atoms stay the same
  4. 5. characterized by or formed with evolution of heat
  5. 6. regions of space outside the nucleus of an atom where electrons may exist
  6. 10. no charge
  7. 14. one of the basic substances that are made of atoms
  8. 15. shorter element name on periodic table
  9. 16. something that is the result of a process
  10. 17. a substance that changes when it is combined with another substance
  11. 18. an element intermediate in properties between metals and non-metals
  12. 21. a reaction that occurs in which a larger of metal is bonded to the surface of another substance