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Ionic Bonding: A Tutorial

Ionic Bonding: A Tutorial. Debbie Pugliese Terry Hafer. Click your mouse button to advance to next slide. Tutorial Directions. Use the mouse button or the right arrow key to advance to the next slide.

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Ionic Bonding: A Tutorial

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  1. Ionic Bonding: A Tutorial Debbie Pugliese Terry Hafer Click your mouse button to advance to next slide

  2. Tutorial Directions • Use the mouse button or the right arrow key to advance to the next slide. • Use the left arrow key in order to go back (except for on the quiz, in which there will be a button to push to go back).

  3. Ionic Bonding…What is it? • An ionic bond is a transfer of electrons from one atom to another. • That is, electrons are removed from one atom and added to the other to create full and empty outer shells, following the octet rule.

  4. Example: Na+1 + Cl-1 NaCl

  5. Animation of Ionic Bonding Click on video to play.

  6. Why does Ionic bonding happen? • Electronegativity values will decide whether or not the bond is an ionic bond or a covalent bond. • Electronegativity essentially is a measure of an element’s tendency to attract electrons. • If the electronegativity is greater than 1.67, then the bond is ionic. If it is less than 1.67, it is covalent. • A chart of the negativities can be found on the next slide.

  7. **NOTE: The chart listed is just an example of an electronegativity chart. In the future, values will be taken from Mr. Wolfe’s electronegativity chart for examples and quiz questions.

  8. Example 1 • KCl • Chlorine has an electronegativity of 3.00 • Potassium has an electronegativity of .84 • 3.00-.84 = 2.16 • 2.16 is greater than 1.67, and therefore the bond is ionic.

  9. Example 2 NO2 • The electronegativity of Nitrogen is 2.81 • The electronegativity of Oxygen is 3.37 • The electronegativity difference is .56, therefore the bond is covalent (because it is less than 1.67). • Note: electronegativity of Oxygen does not get doubled because there are two.

  10. Example 3 • MgO • Magnesium has an electronegativity of 1.2 • Oxygen has an electronegativity of 3.5 • 3.5-1.2 =2.3 • The electronegativity difference is greater than 1.67, therefore the bond is ionic

  11. Are you ready? Click here to take the quiz Go back

  12. Directions • To signify your answer, click the blue button below the answer you believe to be correct. • Have your electronegativity sheet handy. You will need it to answer some of the questions. Start the quiz!

  13. Question 1 • True or False: • Ionic bonding is the transfer of electrons from one atom to another. True False

  14. Correct! Good Work!  Next Question

  15. I’m sorry. Your answer is incorrect. Remember: Ionic Bonding is the transfer of electrons Click here to try again

  16. Question 2 NaF • The electronegativity of Sodium is .96 • The electronegativity of Fluorine is 4.00 • The electronegativity difference is 3.04 Is the bond ionic or covalent? Ionic Covalent

  17. Question 3 • What is the electronegativity difference of CaS2? • 3.90 • -3.90 • 1.44 • -1.44

  18. Question 4 • Is the bond of BaCl2 ionic or covalent? Ionic Covalent

  19. Question 5 • Is the bond of CO2 ionic or covalent? Ionic Covalent

  20. I’m sorry, your answer is incorrect. Remember, an ionic bond happens when the electronegativity difference is greater than 1.67, and if the electronegativity difference is less than 1.67, the bond is covalent. Click here try again

  21. I’m sorry. Your answer is incorrect. Remember: the electronegativity difference is the larger number minus the smaller one. It should only be a positive number. The number should not be doubled if there are two of them. Click here to try again

  22. I’m sorry. Your answer is incorrect. An ionic bond has an electronegativity difference of greater than 1.67 whereas a covalent bond has an electronegativity difference of less than 1.67. Click here try again

  23. I’m sorry. Your answer is incorrect. An ionic bond has an electronegativity difference of greater than 1.67 whereas a covalent bond has an electronegativity difference of less than 1.67. Click here try again

  24. Correct! Good Work!  Next Question!

  25. Correct! Good Work!  Next Question!

  26. Correct! Good Work!  Next Question!

  27. Correct! Good Work!  Click Here!

  28. Congratulations! • You now have a better understanding of Ionic Bonding. Good luck with your Chemistry studies.

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