Across
- 7. A pure substance
- 9. Total number of protons in an element
- 13. Average weight of an atom
- 14. Represents how many orbitals an atom has
- 15. Inside Heat
- 16. Change in form, color, or appearance
Down
- 1. Heat is released
- 2. The energy levels around the nucleus
- 3. Negative charge particle
- 4. Positive charged particle
- 5. "No Charge" particle
- 6. A change in which a new substance is formed
- 8. Includes Neutrons and Protons
- 10. Scientist that created the modern atomic structure
- 11. Building Block
- 12. There are 18 of them in the periodic table