Across
- 3. Small number after element in a formula
- 5. Change that doesn't rearrange atoms, like cutting
- 8. Particle that determines the element
- 9. Anything that has mass and takes up space
- 13. Shared by atoms in molecules to become stable
- 14. Reaction releasing heat (gets hot)
- 16. Causes matter to change states
- 18. A pure substance, type of atom
- 19. Center of the atom containing neutrons protons
Down
- 1. Number in front of formula telling you how many molecules
- 2. A chemical _________ rearranges atoms to form new substances
- 4. Change that does rearrange atoms, like baking a cake
- 6. smallest uncuttable piece of matter
- 7. Formed from a chemical reaction
- 10. Reaction absorbing heat (gets cold)
- 11. Changes into a product in chemical reaction
- 12. Atoms bonded together such as H2O
- 15. Atoms can become ______ when their electron shell is full
- 17. Conservation of matter states that ______ doesn't change in reaction