Across
- 2. elements in group 8A
- 4. column of elements in a periodic table
- 8. arrangement of elements in columns
- 10. elements in group 1A of the periodic
- 11. elements that are poor conductors
- 12. one twelfth the mass of a carbon
- 13. elements in group 2A
- 14. pattern of repeating properties
Down
- 1. elements that form a bridge
- 3. row in a periodic table of element
- 5. elements in group 7A
- 6. elements that are good conductors
- 7. electron that is in the highest
- 9. elements with properties that fall