Across
- 3. special name for Group VII elements
- 6. found on the left of the table
- 7. element with symbol Na
- 9. elements are arranged based on increasing
- 12. horizontal rows of elements
Down
- 1. all elements in Group III have __ valence electrons
- 2. element with e.c = 2, 8, 8, 1
- 4. special name for Group I elements
- 5. elements whose symbol is Cu
- 8. between groups II and III are the __ elements
- 10. matter made up of one kind of atom
- 11. the vertical columns of elements