Across
- 1. building blocks that are combined
- 6. Something that has a negative charge
- 7. something that has no charge
- 8. 2 or more atoms
- 10. Something that has a positive charge
Down
- 2. another way that elements are grouped
- 3. it has mass and takes up space
- 4. Holds the nucleus together
- 5. atoms that are grouped together
- 9. molecule that contains 2 or more atoms
