Across
- 2. It is in the Halogen family
- 5. It is a metal
- 8. It is in period 4
- 9. The atomic mass is 40
- 10. It is a metal
- 11. It is a metalloid
- 12. The number of protons is 88
- 13. The number of protons is 32
- 15. It is in group 18
Down
- 1. Atomic number is 26
- 3. It is a nonmetal
- 4. The number of neutrons is 26
- 6. The number of electrons is 1
- 7. It is an Alkaline Earth Metal
- 14. It is in period 6