Across
- 2. one type of element/atom
- 3. the horizontal row of the periodic table
- 6. two different types of atoms chemically bonded
- 8. a pure substance
- 9. anything that has mass or takes up space
- 11. vertical row of the periodic table
Down
- 1. a table that represents all of the elements
- 4. atoms of the same type grouped together
- 5. a metal mixed with at least one other
- 7. not chemically bonded together
- 10. building blocks