Across
- 5. neutral charge
- 6. On the left side of the Periodic Table
- 7. periods determine this
- 8. columns on the Periodic Table
- 10. Positive charge
- 13. negative charge
Down
- 1. The staircase on the Periodic Table
- 2. unbalanced atom
- 3. stability of an atom
- 4. building blocks of matter
- 9. rows on the Periodic Table
- 11. On the right side of the Periodic Table.
- 12. Valence electrons determine this