Across
- 2. first column on the table; most reactive metal
- 5. reaction where one element gets subsituted
- 6. reaction where atoms combine to make a compound
- 8. reaction where energy is released
- 9. last column on the table; extremely unreactive
- 12. examples of this change include phase change, tearing, and breaking
- 13. smallest possible unit
- 14. positively charged particles in the nucleus
Down
- 1. organizes elements in a specific way
- 3. reaction where energy is absorbed
- 4. neutral particles in the nucleus
- 7. examples of this change include rust, change in color, gives off heat/light, not reversible
- 10. number of valence electrons all atoms want in the outer most shell
- 11. negatively charged particles surrounding the nucleus