Across
- 3. Responsible for current flow
- 7. Process of losing or gaining an electron
- 11. Has Mass and Occupies space
- 13. Neutral charged particle
- 14. Path of electron as it moves around nucleus
- 16. The centre of an Atom
- 17. Force that holds Atom to Atom together
- 19. Insulator made from Silica
- 20. Positively charged particle
Down
- 1. Negatively charged particle
- 2. Element with less than half its valence shell filled is most likely
- 4. Has 4 Valence Electrons
- 5. Has few free Electrons
- 6. Used for Motor brushes
- 8. Furthest orbit from the Nucleus
- 9. Outermost shell
- 10. An electron that can move from Atom to Atom
- 12. Has unique number of protons
- 15. Used in Electrical equipment
- 18. Excellent conductor of Electricity