Across
- 3. element in period 4 group 9
- 5. element symbol is Fe
- 8. elements between alkali metals and transition metals
- 10. element symbol is Au
- 12. element in period 2 group 13
- 14. element symbol is O
- 16. element symbol is N
- 17. elements between transition metals and noble gasses
- 19. elements on the far left side of the periodic table
- 20. element in the bottom right corner of the periodic table
Down
- 1. atomic number is 2
- 2. element group with full valence levels
- 4. element in the bottom left corner of the periodic table
- 6. element group between alkali earth metals and halogens
- 7. the element under hydrogen
- 9. atomic number is 1
- 11. element under neon
- 13. element symbol is N
- 15. atomic number is 10
- 18. element symbol is C