Entry Task
After learning about the concepts of electronegativity and polarity in yesterday’s lesson, students learned how scientist Linus Pauling assigned electronegativity values to individual atoms as a measure of how strongly an atom attracts electrons. The Lesson 44 PowerPoint includes a copy of the periodic table with electronegativity values for each element. It also explains the difference in electronegativity between covalent bonds (0.5 and less), polar covalent bonds (between 0.5-2.1), and ionic bonds (greater than 2.1). The Lesson 44 Worksheet provides students with the opportunity to calculate the electronegativity difference between two atoms in a molecule and to use that information to determine the type of bond that is present between the two atoms.
Class Notes:
Molecule Polarity Simulation:
https://phet.colorado.edu/sims/html/molecule-polarity/latest/molecule-polarity_en.html
Homework:
- Read Lesson 44 in the textbook. Login via hs.saplinglearning.com and enter your username and password:
- Username: wahps****s-####### (**** = first 4 letters of your last name and ####### = student number). Remember to include the dash between s and #.
- Password: S-####### (the S must be capitalized)
- Write notes for Lesson 44 on the Chapter 8 Notes handout.
- Work through the practice problems at the end of Lesson 44.
- Please ask questions about anything from Lesson 44 you do not yet fully understand.