Across
- 6. a mixture that is not consistent throughout
- 9. helps you calculate the amount of neutrons
- 10. consistent throughout the mixture
- 11. something that can be undone without chemical means.
- 12. atomic symbol Ag
- 14. a chemical combination of 2 hydrogen and 1 oxygen
- 15. atomic symbol B
Down
- 1. a gas in group 1
- 2. a letter that abbreviates an element
- 3. a homogeneous mixture of two or more pure substances
- 4. noble gas, element with the lowest boiling point
- 5. the study of matter
- 7. the electron(s) farthest from the shell
- 8. a tool used in chemistry
- 13. atomic number