Download Chemical Bonding Webquest

NAME:___________________________
Chemical Bonding Webquest Taken from
http://fcw.needham.k12.ma.us/~jen_woo/Biology/FOV1-0010811C/S030519D0.15/Chemical%20Bonding%20Webquest.doc
Go to: http://www.teachersdomain.org/asset/lsps07_int_ionicbonding/
1. Describe what happens when two negatively charged particles interact with one another. (you can
draw a diagram to help illustrate your ideas)
2. When will oppositely charged atoms stick together?
3. A. What is an ion? (Look this up online)
B. What is a cation and where can you find it on the periodic table?
C. What is an anion and where can you find it on the periodic table?
4. Take a look at the ionic bond formed between Sodium and Chlorine atoms.
a.
Draw each atom below as it looks like in NaCl on the website.
b. Label the Na and Cl as either + or -. And label each as either Cation or Anion.
5. Describe how ionic compounds form crystals:
COVALENT BONDS Go to: http://www.teachersdomain.org/asset/lsps07_int_covalentbond/
1. If an atom, such as hydrogen, is able to form a covalent bond, describe what happens when the
electron shells of two atoms overlap:
a. What happens when the two atoms are fairly close?
b. What happens when the two atoms are TOO close?
2. What does the nucleus of an atom want to do to its own electrons?
3. What does the nucleus of one atom want to do to the electrons of a nearby atom?
4. Are the atoms really “sharing” electrons?
5. What type of atoms form covalent bonds?
6. Draw a graph showing the change in potential energy when atoms form covalent bonds.
7. What happens to the stability of atoms when they form covalent bonds?
8. A line can be used to represent a covalent bond between two atoms. Diagram pairs of atoms that can
form single, double, and triple bonds.
9. Can every atom form each of these kinds of bonds?
Chemical Bonding Webquest
A. http://www.visionlearning.com/library/science/chemistry-1/CHE1.7-bonding.htm
1. What is the definition of a compound?
2. How is it different from its parent atoms?
3. Read the first few paragraphs. What did Lewis observe about atoms and what did he suggest?
4. What was he wrong about?
5. Read Ionic Bonding. Explain in your own words the nature of an ionic bond. Make sure to include
what is created and what happens in the process.
6. What do they mean by valence electron?
7. Click on the Simulation of the reaction of NaCl. There are three pages. Click on the prompt at the
bottom right to go to page 2 and 3. Explain what you see.
8. What are the 5 common features of ionic compounds?
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9. What is sodium chloride? (use Google if you don’t know!)
10. Read Covalent Bonding. Click on the covalent bonding simulation and explain what you see.
11. Continue reading Covalent Bonding. What is a covalent bond?
12. What types of atoms have a tendency to bond in this way?
13. Why does Hydrogen commonly exist as H2?
14. Read Multiple Bonds And Lewis Dot Structures. Why do multiple bonds form?
15. Draw the Lewis dot structure of 3 molecular compounds- One with single bond(s), One with double
bond(s) and one with triple bond(s).
1.
2.
3.
16. Read Polar and Nonpolar Covalent Bonding. Define each.
Polar Covalent Bond-
Nonpolar Covalent Bond-
17. Click on the simulation of the water molecule. Explain what you see.
18. Read Dipole. Explain the nature of a dipole. Go back to the previous simulation and explain why
water is a dipole.