Across
- 1. The Element the makes all life possible
- 5. It is in the title
- 8. One of the 5 families, has Magnesium
- 9. When the number of Neutrons is different than usual
- 10. A scientist who helped finalize the Periodic table
- 11. 2 Chemical combined elements in a fixed proportion
- 12. Have a positive charge
- 18. One of the 5 Families, has Sodium
- 19. Are organized up and down
- 20. The last element on the table
Down
- 2. Have no charge
- 3. Metals are to the left of this
- 4. One of the 5 families, has Boron
- 6. Have a negative charge
- 7. They are graphed on the periodic table
- 13. One of the 5 families, has Helium
- 14. The first element on the table
- 15. The number of elements on the periodic table
- 16. One of the 5 families, has Chlorine
- 17. Are organized across