Across
- 1. Fe
- 5. has 53 protons
- 6. Has 2 valence electrons;in 4th period
- 9. Liquid in group 7
- 10. Noble gas in 4th period
- 11. Largest transition metal
- 14. Cu
- 15. 5 valence electrons, 4th period
- 17. 7 valence electrons;touches stair step
- 18. What computer chips are made of
- 20. Au
- 23. Smallest alkaline metal
- 25. Nb
- 26. Smallest element in 2nd period
- 27. 34 Protons
- 28. 1st alkali metal
- 30. Smallest element in 5th period
Down
- 2. Smallest element with 6 valence electrons
- 3. Largest element in group 4
- 4. 32 protons
- 7. Atomic number is 80
- 8. 11 protons and 11 electrons
- 12. Halogen in the 3rd period
- 13. Smallest element in 3rd period
- 16. atomic # is half of Sn's
- 19. Alkali metal in 2nd period
- 21. Alkaline earth in 6th period
- 22. has the highest electronegativity
- 24. Zn
- 29. Largest noble gas