Across
- 2. electron beam or e-beam
- 5. Co
- 6. O
- 7. Fe
- 10. the curved path of a celestial object or spacecraft round a star, planet, or moon, especially a periodic elliptical revolution.
- 11. designed to flush the eye and face area only.
- 14. C
- 15. electrons surrounded by a volume of positive charge, like negatively charged "plums" embedded in a positively charged "pudding".
- 16. Na
- 17. Mg
- 19. Ne
Down
- 1. B
- 2. Cu
- 3. a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids.
- 4. Ag
- 8. Zn
- 9. Si
- 12. Al
- 13. Au
- 18. Ar