Across
- 1. the colour that potassium burns
- 3. opposite charges..
- 4. this is a soft metal
- 7. the amount of groups in the periodic table
- 8. has no electrical charge and is neutral
- 9. all metals can..
- 13. the middle of an atom
- 15. has a negative electrical charge
- 16. Has a positive electrical charge
Down
- 2. super conductors only work at..
- 5. car fuel
- 6. if ions that are strongly attracted to each other they have an..
- 10. the loss of electrons
- 11. a bond between two metals
- 12. the gaining of electrons
- 14. the name of each different section in the periodic table