Across
- 2. 7th element of the periodic table
- 5. 1st element of the periodic table
- 7. 18th element of the periodic table
- 9. 12th element of the periodic table
- 10. 11th element of the periodic table
Down
- 1. 14th element of the periodic table
- 3. 22nd element of the periodic table
- 4. 90th element of the periodic table
- 6. 20th element of the periodic table
- 8. 2nd element of the periodic table