Across
- 3. What goes in
- 4. What comes out of a chem. reaction
- 6. two or more of the same atom
- 9. Rows
- 11. Made of molecules and atoms
- 13. Matter can be changed, mixtures csn be seperated, etc.
- 18. Center of an atom
- 19. Pennies
- 20. Heat is released
- 21. Absorbed
- 22. Aren't solid or shiny
- 25. Contain electrons
Down
- 1. Made the Periodic Table
- 2. Outermost
- 5. Shiny, solid, maleable
- 7. Negative charge
- 8. Letters of an element
- 10. Two or more different
- 12. Positive charge
- 14. Number of protons
- 15. Weight of an element
- 16. Similar to metal and non
- 17. No charge
- 22. Royal
- 23. Smallest part of matter
- 24. Columns