Across
- 1. B
- 3. what we breath
- 4. What the periodic table consists of
- 8. Ti
- 10. S
- 14. What everything is made of
- 16. The number of protons in the nucleus
- 17. column of elements
- 19. row of elements
- 20. A royal gas
- 21. Au
Down
- 2. Opposite of a metal
- 5. N
- 6. Bonus: A version of minecraft
- 7. He
- 9. Metal with an oid at the end
- 11. Recently found elements that have no category to go in
- 12. Co
- 13. the average mass of an element's atoms
- 15. Ag
- 18. H