Periodic Table Crossword
Across
- 3. Determines an element,positive charge
- 4. Vertical rows on the periodic table
- 6. Second most common element in humans
- 7. Everything that makes up the universe
- 9. Most common state of mater for non-metals
- 11. Has 3 electrons
- 13. NaCl
- 14. The gases on the 18th group
- 16. Element named after the creator of the periodic table
- 19. Has a neutral charge
- 20. Has 6 protons
Down
- 1. 2 or more elements chemically combined
- 2. Any metal in the first group
- 5. CO2
- 8. Humans need it to breathe
- 10. The last name of our science teacher
- 12. H2O
- 15. Can change the charge of an atom negatively
- 17. Horizontal rows on the periodic table
- 18. most common type of atom