Periodic Table

12345678910111213141516171819202122232425262728293031
Across
  1. 3. the creator of the periodic table.
  2. 4. this element is an actinides.
  3. 7. all are raidoactive.
  4. 9. this element is a halogen.
  5. 10. all lanthanides react ... with most nonmetals.
  6. 11. what the first version of the table was organized by, increasing ..
  7. 13. alakali metals react with ... to make strong bases.
  8. 15. the electrons in the highest energy level.
  9. 17. the group number that helium is in.
  10. 19. contains properties of both metals and nonmetals.
  11. 21. this elelent is a transition metal with an atomic number of 27.
  12. 23. metals that are silvery gray.
  13. 27. oxidize when exposed to air.
  14. 28. nonmetals ... electrons.
  15. 29. the group number that iodine is in.
  16. 31. is an alkaline earth metal with an atomic number of 38.
Down
  1. 1. this element is a noble gas.
  2. 2. they are relatively soft and have a 2+ charge.
  3. 5. this element is shiny.
  4. 6. nonmetals that are the most reactive of all nonmetals.
  5. 8. the things surrounding each element symbol.
  6. 12. good conductors of heat and electricity.
  7. 14. when metals and nonmetals bond together, ions are formed from a ... of electrons.
  8. 16. the person who provided a way to visualize an atoms structure.
  9. 18. they are colorless, odorless, and tasteless.
  10. 20. this is an alkali metal.
  11. 22. metals ... electrons.
  12. 24. an atom or molecule with a net electrical charge.
  13. 25. this element is dull.
  14. 26. this element is a lanthanides.
  15. 30. where the elements are organized into a table.