Across
- 2. particles used as building blocks
- 5. a grouping of atoms bonded together
- 8. the result of chemical reactions
- 10. indicates the amount of an atom in a molecule
- 11. the reaction of separating different elements
Down
- 1. (two words)a singular element
- 3. a substance that is unbreakable
- 4. when 2 or more elements combine
- 6. takes part in chemical reaction, on left side of arrow
- 7. a number that represents the amount of molecules
- 9. the amount of matter in an item