Across
- 2. Positive charged ion
- 4. Total number of protons and neutrons
- 5. Row of Chemical Elements
- 8. Metalloids placement
- 10. Most reactive side of the Periodic Table
- 11. Negative charged ion
- 13. Sodium Chloride
- 14. Number of Proton in the Nucleus
Down
- 1. Atomic Number 1
- 3. Elements that make up Group 1
- 6. Two H's and one O
- 7. Elements found on a staircase
- 9. Column of Chemical Elements
- 12. Made up of Protons and Electrons
- 15. Everyone needs this to live