Across
- 5. How many elements are there
- 6. strongest metal on earth
- 8. most common element
- 9. Rarest element on earth
- 10. most dense element
- 12. What is the most reactive element
Down
- 1. A Type of Binary compounds
- 2. First Artificial element
- 3. What is group 8A called
- 4. Rows in the periodic table are called what?
- 7. least reactive element
- 11. Element used to make atomic bombs