Across
- 2. Simple covalent molecules have low melting and boiling points because they have weak _____________ forces between the molecules.
- 6. Ionic compounds form a giant ionic __________.
- 8. __________ number on the periodic table tells us how many electrons are on an atoms outer shell.
- 9. Graphite is soft and slippery because it has __________. This means it is used as a lubricant for machines.
- 11. Ionic compounds can conduct electricity when molten or dissolved in solution because the ions can _________.
- 13. How many electrons does lithium donate when it forms an ionic bond with chlorine?
- 15. Giant covalent substances have high melting and boiling points because they have __________ bonds.
- 16. Type of bonding between two or more non-metals.
- 18. Positively charged ion.
- 21. Loss of electrons is called ____________.
- 22. Graphite can conduct electricity because it has ________ electrons.
- 25. The __________ an element is in tells use how many electron shells its atoms will have.
Down
- 1. Gain of electrons is called ____________.
- 3. Metals can be bent into shape. We say they are __________.
- 4. Negatively charged ion.
- 5. During ionic bonding, non-metal atoms ______ electrons.
- 7. Each carbon in diamond makes ________ bonds.
- 10. These are shared when non-metals bond to non-metals.
- 12. Type of bonding found in metals only.
- 14. A charged particle.
- 17. Type of bonding between a metal and a non-metal.
- 19. How many electrons will sulfur gain when it bonds with sodium?
- 20. When oxygen bonds to itself (O2) it forms a _______ covalent bond.
- 23. The type of attraction between oppositely charged ions.
- 24. During ionic bonding, metal atoms ______ electrons.