Across
- 3. electrons not responsible for chemical properties
- 6. Atom that is an exception to the octet rule; is stable with only 2 valence electrons
- 7. energy needed to remove an electron from an atom
- 10. positive ions
- 11. electrons in the outermost energy level
- 12. gaining electrons creates this charge
- 15. best conductors of heat/electricity
- 16. form +2 ions
Down
- 1. Group of extremely reactive nonmetals
- 2. group of elements that do not react to form compounds
- 4. ability of an atom to gain extra electrons for bonding
- 5. losing electrons creates this charge
- 7. atoms with a charge
- 8. negative ions
- 9. have properties of both conductors and nonconductors
- 13. Group of extremely reactive metals
- 14. distance from the nucleus to the furthest electrons