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1. What does the typical definition of ionic bonding involve?
2. Click on the right arrow. Follow the directions on the screen. What happens when you move the negative charge close to the other negative charge?
3. Click on the right arrow. Follow the directions on the screen. What happens when you move the opposite charges close to each other?
4. Click on the right arrow to screen 5. What do like charges do? What do opposite charges
do?
5. Click on the right arrow. What do atoms that form positive ions tend to do?
6. What usually forms the positive ion?
7. Where can these be found on the periodic table?
8. Click on the right arrow. What do atoms that form negative ions tend to do?
9. What usually forms the negative ion?
10. Where can these be found on the periodic table? I
11. Click on the right arrow. What forms an ionic bond?
12. Click on the right arrow and read the following screens. Continue to screen 10.
13. Why are chlorine atoms able to take one electron from the sodium atom?
14. What happens when the sodium atom loses an electron?

15. What happens when the chlorine atom gains an electron? What is it called after it gains an electron?
16. Click on the right arrow. Since the two ions now have opposite charges, what will happen?
17. Click on the right arrow. What is an ionic bond?
18. Click on the right arrow and read the following screens. Continue to screen 18.
19. When other ion pairs are attracted, what is built?
20. Click on the right arrow and read the following screens. Continue to screen 21. Click
"Count Na" lons" and "Count Cl Ions." What is the ratiz of sodium ions to chloride ions?
21. Click on the right arrow. Since the ration Nat to Cl is 1 to 1, what is the formula?
22. Click on the right arrow. What does the formula tell us?
23. Click on the right arrow. The crystal shown is formed between calcium ions and fluoride ions. In the boxes on the screen, enter the number of each type of ion present. Check your answers.
24. What is the ratio of calcium to fluoride ions? What does this reduce to? What is the ionic formula?
25. Click on the right arrow. Continue to screen 27.


Student Questions
1. What types of atoms form cations? Where are they located on the Periodic Table?
2. What types of atoms form anions? Where are they located on the Periodic Table?
3. Why do chlorine atoms have a strong attraction for electrons? What other are other examples of atoms that behave similarly to chlorine atoms?
4. What is a chlorine ion called?
5. How do ionic bonds form?
6. What is a diatomic molecule?
7. Describe how ionic crystals form.
8. In a sodium chloride salt crystal, what is the ratio of sodium ions to chloride ions?
9. What is the formula for sodium chloride?