Across
- 4. Something that contains mass
- 7. Different elements that are not chemically bonded together.
- 9. are a group of atoms that are held together with strong forces is called it.
- 10. Different elements that are chemically bonded together.
Down
- 1. A group of the same type of atoms chemically bonded together.
- 2. are composed of one kind of element or compound
- 3. Are like building blocks
- 5. Components are uniform and cannot be observed separately.
- 6. Components are not uniform, and can be observed separately.
- 8. A metal mixed with at least one other element.