Across
- 2. materials that conduct electricity with little or no resistance
- 3. coloumn in the periodic table
- 5. between two non-metals
- 7. form positive ions
- 8. have no charge and a mass of 1
- 10. have a negative charge and a mass of zero
- 11. number of protons
- 12. have a plus charge and a mass of 1
- 13. charged particles
- 15. the movement of ions which allows the flow of electricity
Down
- 1. allow metals to conduct heat and electrons
- 4. row in the periodic table
- 6. form between metals and non-metals
- 7. the mass of the element
- 9. gaining an electron
- 14. loss on an electron
- 16. become positively charged ions