Across
- 4. metalloids are better these than nonmetals but not as good as metals
- 5. transition metals come from the ores of which planets crust
- 7. Mosely organized his periodic table by the increasing of
- 8. the most reactive nonmetals
- 9. top to bottom is least reactive to most reactive
- 10. these elements are nonreactive and are colorless
- 12. the number of electrons in the noble gases outermost shell
- 15. who created the first periodic table
- 19. very soft metals (consistency of cream cheese)
- 21. contain properties of both metals and nonmetals
- 23. the charge of alkaline earth metals
- 25. metals become this type of charged of ion
- 26. the group that alkaline earth metals belongs to
- 27. the group that alkali metals belongs to
- 29. also known as rare earth metals
- 31. when metals and nonmetals chemically bond together these are formed
Down
- 1. actinides are not found in nature meaning they are
- 2. classification of groups three through thirteen
- 3. halogens is a part of this group number
- 6. the amount of valence electrons in radium
- 11. another word for gain when saying metals gain electrons
- 13. these are all radioactive
- 14. nonmetals become this type of charged ion
- 16. the amount of dots on the element boron
- 17. ions are formed from a transfer of these
- 18. the definition of donate when metals are donating electrons
- 20. the order of which the first periodic table was organized by
- 22. lanthanides react violently with these
- 24. top to bottom most reactive to least reactive
- 28. the name of positive ions
- 30. the name of negative ions