Chemistry
Chapter 6: Sections 6-7
Homework
Electron Quantum Mechanics
Chapter 6: 6-7 Homework
- Reading Preparation
- WebLecture
- Study Activity
- Preparation work for chat
- Online Quiz
- Lab Instructions
Reading Preparation
Textbook assignment: Read Kotz and Triechel, Chemistry and Chemical Reactivity Chapter 6 Sections 6 to 7.
Study Notes
6.6 The angular momentum quantum number l is related to the shapes s, p, d, and f of the orbital.
6.7 The direction of electron spin determines the net magnetic properties of the atom.
Atomic orbitals determine how electrons form bonds between atoms. The energy required to move atoms close together is controlled by the number of electrons and their position relative to their "home" atom nucleus and the nuclei of the bonding atoms.
There are no equations for these sections.
Web Lecture
Read the following weblecture before chat: Quantum Numbers and Orbitals
Study Activity
Videos for Chapter 6: The Structure of Atoms
Review the Videos at Thinkwell Video Lessons.
- Under "MODERN ATOMIC THEORY: Atomic Orbitals"
- Atomic Orbital Size
- Atomic Orbital Shapes and Quantum Numbers
- Atomic Orbital Energy
Use the electron orbital quantum viewer to see how an electron's possible locations change as you change the quantum numbers. Note that at any point you can grab the display and change your viewpoint.
- What are the quantum values for n and l on the default?
- Change the n value to n = 1. What happens to the orbital? What shape is it now?
- What values for l are available from the l dropdown menu? Why?
- What orbital designations are available (1s, 2s, 2p, 3s, 3p, etc.)?
- Change the n value to n = 2. What is the orbital shape now?
- What shape do you have if n = 2 and l = 1? What happens if you change the designation to 2px or 2py?
- Experiment with higher values of n, such as n=5.
Chat Preparation Activities
- Essay question: The Moodle forum for the session will assign a specific study question for you to prepare for chat. You need to read this question and post your answer before chat starts for this session.
- Mastery Exercise: The Moodle Mastery exercise for the chapter will contain sections related to our chat topic. Try to complete these before the chat starts, so that you can ask questions.
Chapter Quiz
- Required: Complete the Mastery exercise with a passing score of 85% or better.
- Go to the Moodle and take the quiz for this chapter.
Lab Work
LAB #4 GUIDED INQUIRY: Measuring reaction rates for photosensitive reactions -- Phase III
If you have time, refine and recalibrate your standards to give more accurate concentration estimates, and repeat your experiment.
References:
- IGHCE Lab 17.1 Photochemical Reaction of Iodine and Oxalate
- HSCMK IX-1: Photochemical Reaction of Iodine and Oxalate]
- APGIE Investigation 2: How Can Color Be Used to Determine the Mass Percent of Copper in Brass?
- No Alternative Lab exists for this exercise.
© 2005 - 2024 This course is offered through Scholars Online, a non-profit organization supporting classical Christian education through online courses. Permission to copy course content (lessons and labs) for personal study is granted to students currently or formerly enrolled in the course through Scholars Online. Reproduction for any other purpose, without the express written consent of the author, is prohibited.