Across
- 5. combination of one or more
- 7. rows
- 10. deuteriation
- 11. temp of metals
- 16. negative word
- 18. temp from a solid to a liquid
- 20. atom with a overall positive or negative charge
Down
- 1. average mass of atoms
- 2. each atom in contact with others
- 3. are solid room temp
- 4. Table of elements table of all known elements
- 6. last energy level
- 8. particles that are small
- 9. sub-atomic
- 12. load applied to a material
- 13. pure substances
- 14. smallest unit
- 15. with neutral change
- 17. continued cubic parking
- 19. columns