Name_________________________
Mr. Taylor-Waldman
Chemical Bonding Review Sheet – Chemical Interactions, Chapter 1,
sections 2,3,4. Test is Wednesday, March 25.
Chapter 1 (Chemical Interactions)- ‘Atoms and Bonding’
Section 2- ‘Atoms, Bonding, and the Periodic Table’
 Know what valence electrons are.
 Be able to draw electron dot diagrams.
 Know how to find the number of valence e- by looking at the periodic table.
Terms: valence electrons, electron dot diagram, chemical bond, noble gas
Section 3- ‘Ionic Bonds’
 Be able to describe ions and how they form bonds.
 Know that positive ions are formed when metals lose electron(s) and negative ions are
formed when nonmetals gain valence electrons.
Terms: ion, polyatomic ion
Section 4- ‘Covalent Bonds’
 Be able to describe covalent bonds and how they form.
 Know that positive ions are formed when metals lose electron(s) and negative ions are
formed when nonmetals gain valence electrons.
 Be able to differentiate between polar and non-polar bonds.
Terms: double bond, triple bond, polar bond
“Shedding Light on Ions” Lab
 Be able to discuss the procedure used to test electrical conductivity in the lab
 Know why ionic compounds were able to conduct electricity and why molecular
compounds (covalent bonds) could not conduct electricity.
Review Questions:
1. Draw electron dot diagrams for beryllium, phosphorous, oxygen and bromine.
2. What subatomic particles are involved in chemical bonding between atoms?
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3. How many of these particles are needed to make an atom stable? What two elements are exceptions to
this, and how many of these particles do they need to be stable?
4. What kind of ions do metals form? Nonmetals?
5. What is the property of ionic compounds that was tested in the “Shedding Light on Ions” Lab? How did
you make your conductivity tester? Describe this in detail.
6. Where, in general, on the periodic table would you find atoms involved in covalent bonding? What
kinds of elements make up these bonds?
7. What kind of elements are involved in ionic bonding?
8. What is the force that holds ionic bonds together? Covalent Bonds?
9. What is meant by a non-polar substance, and what is an example?
10. What is a polar substance, and what is an example?
11. What is a double bond and how many electrons are in a double bond? Triple bond?
12. Draw electron dot diagrams for two oxygen atoms, and then draw a diagram showing how the two
atoms would share electrons in a covalent bond.
13. What are three properties of molecular compounds? Ionic compounds?
14. Why don’t oil and water mix?
15. What are polyatomic ions and what are two examples?
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