Across
- 2. group 3
- 4. atomic mass 22
- 5. elctrons 18
- 9. transition meatels
- 10. atomic number of 2
- 11. transtion metals
- 13. electrons 16
Down
- 1. netrouns 6
- 3. metals akline metals
- 6. atomic numer 79
- 7. neutrons 10
- 8. non meatels reactive non metals
- 10. period 2
- 12. atomic mass 11
