Across
- 2. Takes up space and has mass
- 5. Chemically bonded molecules
- 6. group of atoms
- 9. Not chemically bonded atoms
Down
- 1. basic forms of atoms
- 3. The amount of elements needed to form a compound
- 4. Water compound
- 5. bond:The process needed to create a compound
- 7. Mix this with Iron and you get steel
- 8. Building block of life