periodic crossword

1234567891011121314151617181920
Across
  1. 1. positively charged atom
  2. 4. model that shows electrons and orbitals
  3. 6. bond between metals and non metals
  4. 10. 118 on the periodic table
  5. 11. change the mass without effecting the properties or element
  6. 13. the most common element in earths crust
  7. 16. dull, brittle, and powdery
  8. 17. an atom with a charge
  9. 18. the rows across the periodic table
  10. 20. shiny, malleable, and good conductor
Down
  1. 2. negatively charged atom
  2. 3. the type of properties that are shared in the groups of the periodic table
  3. 5. how many capitals are in every abbreviation
  4. 7. the same element with a different atomic mass
  5. 8. bond between two metals
  6. 9. the rings that hold electrons
  7. 12. element with the symbol K
  8. 14. the columns down the periodic table
  9. 15. last name of who created the current system of the periodic table
  10. 19. model that shows valence electrons