Across
- 2. share electrons
- 4. two combined
- 5. all elements in the same ______ have the same number of energy levels
- 6. same trend as ionization energy
- 7. ionic bond ______ electrons
- 10. atomic radius _____ from top to bottom
- 11. outermost
- 12. has charge
Down
- 1. positive
- 3. brittle
- 8. atom
- 9. malleable