Across
- 2. Negatively charged ion
- 5. Atom or molecule with a charge
- 8. Common name for an ionic compound
- 9. Negatively charged subatomic particle
- 12. Example of a molecular compound
- 14. Rule that atoms want 8 electrons in their outer shell
- 15. Positively charged ion
- 17. Low melting and boiling points describe this type of compound
- 18. Horizontal row on the periodic table
- 19. Sum of protons and neutrons in an atom
- 20. Positively charged subatomic particle
- 21. Bond formed by transfer of electrons
- 22. Vertical column on the periodic table
Down
- 1. Atom of the same element with different numbers of neutrons
- 3. Neutral subatomic particle
- 4. Bond formed by sharing electrons
- 6. Bond with a 'sea of electrons'
- 7. Outer electron shell of an atom
- 10. Property of metals allowing electricity to flow
- 11. Property of ionic compounds when struck
- 13. Number of protons in an atom
- 16. Example of a metallic element