Across
- 2. Negative ion
- 5. The smallest unit of an element
- 10. The ability to attract electrons
- 12. Electrons involve in bonding
- 16. What happens to electrons in an ionic bond
- 17. The shortest covalent bond
- 18. Positive charge in the nucleus
- 19. The SI unit for temperature
- 20. Phase of matter where the particles vibrate
Down
- 1. Two or more substances physically combined
- 3. What happens to electrons within a covalent bond
- 4. The space occupied by matter
- 6. Anything that has mass and volume
- 7. The SI unit for length
- 8. A substance with atoms from different elements chemically combined
- 9. Instrument to measure mass
- 11. The difference between two values
- 13. Positive ion
- 14. Amount of matter in an object
- 15. Mass per unit of volume