Chemistry 1-24-20 Applications of Radioactivity

CHEMISTRY: Radioactive isotopes all around! Did you ever dream there were so many applications of radioactivity? This is a pic of a test used to check on blood flow through the heart during a stress test. Fun, huh!? Click on the link below the pic to learn more from Cedars-Sinai hospital.

Here’s the lecture from today – applications of radioactive isotopes. We’ll finish more applications and then fission and fusion on Monday.

HOMEWORK UPDATE: Friday night’s homework (due Monday), Pg. 675, 1 – 5, 8 (Show work on all problems!!)

IMPORTANT: Don’t forget about the Half Life lab! Scroll down to find the post for your class and for more information. Data is due when? Where? Check the post and the syllabus for info!


Image source http://www.cedars-sinai.edu

Physics 1-24-20 Stability & Torque Problems Review

PHYSICS: Ohhhhhhhhh….so that’s how they can walk across that line! Wait – why do they keep moving their bodies?? Great opportunities for discussion and application!?!

Here’s the discussion from today on how stability relates to center of mass. At the beginning, a quick look at a couple of torque problems from the homework, Torque Worksheet 2.


Photo by Mauricio Santanna on Unsplash

Hon Chemistry 1-24-20 Chapter 4 Overview

HON CHEMISTRY: God bless as you study for the chapter 4 test! Here’s our overview of the test and look back at some of the “problems” from the chapter. BONUS – Below today’s lesson, I’ve also included a vodcast of a review day with electron notations.

Have you checked out the Chapter 4 Stuff to Know Sheet? Make sure you give yourself plenty of time to memorize the things you need to memorize so that you can apply them on the test. And practice, practice, practice, the problems and electron configurations. Did I mention that already?

What about applications for discussion? Photoelectric effect, spectroscopy, etc.? Another great idea for studying is to watch the videos that we watched in class, and others – super helpful as you study for the test!! Here are some of them:
Spectrum of the Stars (overivew of the results of the spectroscopy lab you did, shows the connection between our lab on spectroscopy and how we can identify elements), Emission Spectrum of Hydrogen (how we use it to know about the energy levels in an atom), Quantum Mechanics (about the roles of Bohr, Schrodinger, Heisenberg), and also Animated Quantum Mechanics.

God bless you as you study! I’ll be praying for you!!


flickr photo by only alice

Hon Chemistry 1-22-20 Electron Configuration Homework & Practice