Across
- 2. does not result in a new substance
- 5. the horizontal rows in the periodic table
- 6. an object that allows the flow of charge in one or more directions
- 7. substances you end with after the chemical reaction
- 8. substance composed of many identical molecules
- 10. something that is hard but very easy to break
Down
- 1. a group of electrons circulating around the nucleus
- 3. the amount of protons found in the element
- 4. has no charge to the atom
- 9. has a positive charge to the atom