Across
- 1. Can be shown by light, gas, color
- 5. Atomic number of this element is 5
- 7. Outermost electrons
- 8. Number of atoms
- 10. Numbers on the left side of the periodic table
- 12. Number of molecules
- 14. Atomic number of this element is 8
- 15. Atomic number of this element is one
- 16. Atomic number of this element is 6
Down
- 2. The smallest component of an element
- 3. On the electron cloud
- 4. measured in atomic mass units
- 6. Numbers in the top of the periodic table
- 9. How an object reacts to certain materials
- 11. Subatomic particle with a positive charge
- 13. Subatomic particle with neutral charge