Across
- 3. alkali metal is reactive with what to make strong bases
- 5. the group boron is in
- 7. dull, poor conductor of heat,low melting point'
- 8. "rare earth metals", high melting, and boiling points.
- 11. this element is found in group 2, period 5
- 14. this element is found in group 18,period 1
- 15. this is a element of lanthanide
- 17. nonmetals called anions have what type of ion charge?
- 19. contains both metals and nonmetals,can be shiny or dull
- 20. metals called cations have what type of ion charge
- 23. a ion is formed from a transfer of what?
- 25. what surrounds each element symbol
- 26. elements are listed in what type of order by atomic number
- 27. this is a element of actinide
- 28. full valence, colorless, odorless, tasteless
- 29. extremely soft. (think cream cheese.)
- 30. group calcium is in
Down
- 1. the group hydrogen is in.
- 2. what provides a way to visualize a atoms structure, and amount of balanced electrons
- 4. creator of the first periodic table
- 6. this element if found in group 1, period 5
- 9. ductile and malleable, come from ores in Earth's crust
- 10. nonmetal charge is -1, high electronegativity
- 12. relatively soft, found alone in nature
- 13. this element is found in group 17,period 4
- 16. creator of the most recent periodic table
- 18. lanthanides react violently most with what type of metal?
- 19. high melting point, dense, shiny, ductile
- 21. group of electrons with a electric charge
- 22. this element Is found in group 8, period 3
- 24. all are radioactive, elements are man made.