Across
- 2. table: a table used to show elements
- 5. different types of substances(not bonded)
- 7. letter used to represent elements
- 8. anything that has mass and takes up space
- 9. building blocks
Down
- 1. two or more types of atoms
- 3. symbol for Oxygen
- 4. a connection used to connect two things
- 6. atoms of the same type in a group
- 10. to be apart