Across
- 2. elements that are excellent conductors of electricity
- 5. a chart of elements
- 9. a mixture that is difficult to separate
- 10. a state of matter where atoms atoms are far apart and move fast
- 11. a state of matter in which molecules are close but slide by each other
- 13. a state of matter in which the molecules are packed tightly together
- 14. matter that does not react
- 15. the chemical formula for salt
- 16. the process where a solid becomes a vapor
- 19. an atom that has gained or lost neutrons
- 20. an example of a metallic chemical reaction
- 21. matter that responds when in contact with other matter
- 22. gold
- 23. where protons and neutrons are located
Down
- 1. the smallest known whole particle
- 2. a substances ability to bend or reshape
- 3. the number of protons and neutrons in an atom's nucleus
- 4. what visual evidence proves that gas is created when mixing vinegar and baking soda
- 6. the number of protons in an atom's nucleus
- 7. a measurement of how slippery matter is
- 8. what an atom must lose or gain to become charged
- 9. a process that causes molecules to move away from each other
- 12. an electrically charged atom
- 17. a state of matter where atoms are charged, far apart, and moving rapidly
- 18. a process that causes molecules to pack together