Across
- 4. the device to measure amperes
- 6. the transfer of energy from one solid to another
- 7. concentration of a force
- 8. have metal and non-metal properties
- 12. the unit of current
- 15. how may electron are in the last shell
- 17. an atom that is not neutral
- 18. positive charge
- 19. vertical row of the periodic table
Down
- 1. poor conductors
- 2. what measures volts
- 3. is an imbalance of electric charges
- 5. negative charge
- 8. the turning effect of a force
- 9. something that uses the energy
- 10. no equilibrium
- 11. a group in the periodic table
- 13. is a substance whose atoms all have the same number of protons
- 14. horizontal row of the periodic table
- 16. neutral charge