Periodic Table Project

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Across
  1. 1. the combining power of an element
  2. 3. the name given to the set of chemical properties that are associated with metals
  3. 7. follows the trends of Alkali metals,just a little less reactive
  4. 13. regions surrounding the atomic nucleus containing a specific number of electrons
  5. 15. the number of protons
  6. 16. the mass per volume of matter
  7. 17. Considered the family/group of the periodic table
  8. 19. add together the total protons and neutrons
Down
  1. 2. very reactive,increases in reactivity going UP
  2. 4. the size of an atom
  3. 5. in periodic table it first increases then decreases
  4. 6. represent the number of valence electrons on an atom
  5. 8. a measure of whether or not atoms will trade electrons with other atoms
  6. 9. when the number of carbons increase this increases
  7. 10. the tendency of an atom to attract electrons towards
  8. 11. very reactive,used to kill pathogens & other things
  9. 12. used to prevent chemical reactions and unreactive
  10. 14. pattern of change
  11. 15. an abbreviation of the name
  12. 18. represent the number of shells on an atom