Across
- 2. most reactive nonmetals
- 7. shiny metals
- 8. harder, denser, stronger than alkali earth metals.
- 12. Alkali metals react strongly with _____.
- 13. Transition metals are good conductors of ___________.
- 15. semiconductors, brittle
- 16. stable in the presence of air
Down
- 1. Alkali metals are strong enough to cut with a ______.
- 3. than Alkali metals.
- 4. are all radioactive
- 5. Alkaline-earth metals have higher melting points than ______ ______.
- 6. Alkali metals are not found in nature as ____ _______.
- 9. Transition metals have higher ______.
- 10. What are unreactive, and exist as free elements in nature?
- 11. properties vary greatly
- 14. Alkaline-earth metals are not found in ______ as free elements.