Across
- 2. smallest part of an element
- 5. the valance elecrons determime the reactivity of an element
- 7. a chnage where a substances atoms are rearranged into a new substances
- 9. in the middle of the atom
- 12. force=mass x acceleration
- 14. run side to side in rows
- 15. can have properties of both a metal or non metal
- 17. small particles in the electron cloud
- 18. are in the nucleus and have a positive charge
- 19. law of action reaction
Down
- 1. run up and down in columns
- 3. can be malleable, luster, a conductor, and ductile
- 4. a change in size, color, shape, or state of matter
- 6. based on how many electrons are in them
- 8. a cloud that surrounds the atom
- 9. the law of inertia
- 10. the electrons in the outside electron cloud
- 11. a table that is arranged into periods and groups
- 13. are in the nucleus and has a negative charge
- 16. can be brittle, a insulator and can be dull