Across
- 3. Positive charged particles found in every element
- 5. A bonding of 2 non-metals
- 9. A negatively charged particles that orbit around the outside of the nucleus
- 10. Atoms that hold a positive or negative charge
- 11. A bonding of a metal and non-metal
- 13. Group 18
- 14. Periods
- 15. Hydrogen+Oxygen
Down
- 1. A particle with no charge
- 2. Calcium and Fluorine's bond
- 4. Touches the staircase
- 6. 8 protons
- 7. Gold
- 8. Groups
- 12. A variation of an element with the same atomic number but a different mass number