Across
- 4. Chemical compound with the formula CF4
- 7. Bond formed by the sharing of electrons between atoms
- 10. Ion containing more than two atoms
- 11. Vertical column on the periodic table
- 12. Electrically neutral subatomic particle
- 14. Region around the nucleus where electrons are found
- 17. Elements known for their stability and lack of reactivity
- 19. Electrically charged atom
- 21. Tiny particle with a nucleus and electron cloud
- 22. Compound composed of calcium and nitrate ions
Down
- 1. Negatively charged ion
- 2. Total number of protons and neutrons in an atom's nucleus
- 3. Common table salt
- 5. Number of protons in an atom's nucleus
- 6. Type of bond formed by the attraction between metal atoms
- 8. Positively charged ion
- 9. Positively charged subatomic particle
- 13. Horizontal row on the periodic table
- 15. Diagram representing valence electrons in an atom
- 16. Bond formed by the transfer of electrons between atoms due to electrostatic attraction
- 18. Group of reactive metals including lithium and sodium
- 20. Elements located in the middle of the periodic table