Chemistry Study Guide

123456789101112131415161718192021222324
Across
  1. 1. left to right on a periodic table
  2. 3. element not having a metal character
  3. 5. gives off heat and energy
  4. 7. represents the element
  5. 9. properties between metals and nonmetals
  6. 11. one substance made from atoms
  7. 12. any closed system subjected to no external forces, mass is constant irrespective of its changes in form
  8. 14. absorbed energy; cold temperature
  9. 17. represents the number of protons and electrons
  10. 19. goes around the nucleus, area where electrons are
  11. 20. combining two or more substances
  12. 22. substance that is a conductor of electricity and heat
  13. 24. positive electrical charge
Down
  1. 1. substance obtained from another substance through chemical change
  2. 2. created the periodic table
  3. 3. neutral electrical charge
  4. 4. substance that changes when combined with other substances through chemical reaction
  5. 6. group of rare gases
  6. 8. amount of electrons on the outer shell of an atom
  7. 10. smallest particle of an element
  8. 13. mass given of an element
  9. 15. negative electrical charge
  10. 16. center part of an atom
  11. 18. one or more atoms of the same substance
  12. 21. an external layer of metal
  13. 23. top to bottom on a periodic table