Across
- 2. Has mass and takes up space.
- 4. What is the compound H2O called?
- 6. This gas has a make up of CO2
- 8. an incredibly small building block of matter
- 9. These hold together atoms in compounds
Down
- 1. The elements are arranged on this table
- 3. Atoms of the same type that are organize on the periodic table.
- 5. a group of elements or compounds not bonded together chemically.
- 6. a group of atoms chemically bonded together.
- 7. This gas has a make up of O2