Understanding Ionic and Metallic Bonding in Chemistry

1. Chapter 7 Review“Ionic and Metallic Bonding”

2. Chapter 7 Review • What does the term coordination number in ionic crystals refer to? • How many electrons does nitrogen gain in order to achieve a noble-gas electron configuration? • How does oxygen obey the octet rule when reacting to form compounds?

3. Chapter 7 Review • How many valence electrons are in an atom of magnesium? • What is the electron configuration of the calcium ion? • What is the formula of the ion formed when cadmium achieves a pseudo-noble-gas electron configuration?

4. Chapter 7 Review • Ionic compounds are normally in which physical state at room temperature? • What sub-atomic particle is free to drift in metals? • What is the formula of the ion formed when potassium achieves the noble-gas electron configuration?

5. Chapter 7 Review • What is the formula of the ion formed when phosphorus achieves a noble-gas electron configuration? • What is the charge on the strontium ion? • Know the characteristics of an ionic compound. • A compound held together by ionic bonds is called a ____.

6. Chapter 7 Review • What is the formula of sodium nitride? • What is the name given to the electrons in the highest occupied energy level of an atom? • What is the basis of a metallic bond? • How many electrons are transferred from calcium to iodine when forming the compound calcium iodide?

7. Chapter 7 Review • Which of the following elements does NOT form an ion with a charge of 1+: a) fluorine, or b) potassium? • Which metallic crystal structure has a coordination number of 8? • What is the name of the compound formed from lithium and bromine? • How many valence electrons are in an atom of phosphorus?

8. Chapter 7 Review • Under what conditions can potassium bromide conduct electricity? • What is the electron configuration of the iodide ion? • What is the maximum charge an ion is likely to have?

9. Chapter 7 Review • In a hexagonal close-packed crystal, every atom (except those on the surface) has ___ neighbors. • What is the electron configuration of the gallium ion? • What characteristic of metals makes them good electrical conductors? • The electron configuration of a fluoride ion (F1-) is ____.

10. Chapter 7 Review • What is the electron configuration of the oxide ion (O2-)? • An ionic bond is a bond between ___. • How many electrons does silver need to lose in order to achieve a pseudo-noble-gas electron configuration? • Which of the following ions has a pseudo-noble-gas configuration: a) Fe2+, or b) Cu1+

11. Chapter 7 Review • Which of the following pairs of elements is most likely to form an ionic compound: a) magnesium and fluorine, or b) sodium and aluminum? • What occurs in an ionic bond? • What is true about the melting temperature of potassium chloride? • How many electrons are transferred from nitrogen to potassium in the formation of the compound potassium nitride?

12. Chapter 7 Review • How many valence electrons are in a silicon atom? • What is the formula for potassium sulfide? • How many electrons does barium have to give up to achieve a noble-gas electron configuration? • What is the formula of aluminum oxide? (a formula unit)

13. Chapter 7 Review • What is the net charge of the ionic compound calcium fluoride? • How does calcium obey the octet rule when reacting to form compounds? • The octet rule states that, in chemical compounds, atoms tend to have _____.

14. Chapter 7 Review • What is the charge of a particle having 9 protons and 10 electrons? • How many electrons does a gallium atom give up when it becomes an ion? • How many valence electrons are in rubidium? • What is the coordination number of both ions in the cesium chloride crystal?

15. Chapter 7 Review • How many valence electrons are in bromine? End of Chapter 7 Review