Across
- 3. chemically bonded together
- 5. are small building blocks
- 7. types of atoms
Down
- 1. metal that is mixed with at least another element
- 2. hundred eighteen there how many elements in the periodic table
- 4. elements mixed together but not chemically
- 6. is mixed with iron and carbon to make what
- 8. anything that takes up space
- 9. what is the periodic abbreviation of sodium and chloride