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Unit 9: Radioactivity and Nuclear Energy

Unit 9 is on the topic of nuclear radition and nuclear energy. We will learn what nuclear radiation is and how it is used for both bad and good purposes. It will be a shortened due to the end of the school year. The actual schedule for the remaining days is listed below on this page.

There will be a quiz on this topic on Tuesday, June 4. It will be the last score of the quarter.

Final Exam

Information about the Final Exam will be available soon. It will be only mildly cummulative. That is to say that content learned first semester will be on the Final Exam. However, it is the first semester content that was repeated during second semester or incredibly important that will find its way into the Final Exam. Most questions will be based on second semester content.

Stellar Nucleosythesis

On Wednessday (5/29), we will discuss stellar nucleosynthesis. Part of the discussion will involve the viewing of a video by either Sixty Symbols or PBS Digital Studios.

Binding Energy Curve

On Friday (5/31), we will discuss Einstein's E = m•c2 equation and its use in calculating the binding energy of a nucleus. Reference will be made to the following binding energy curve. (It tells the secrets of the universe ... really!)

Radioactive Dose and Health Effects

Pages 13-14 of your packet is full of information about radiation measurement and exposure. We may be discussing this information on Friday (5/31) and Tuesday (6/2). Reference will be made to the following sources:

The Most Radioactive Places on Earth

On Friday (5/31), we will discuss radiation exposure and watch the Veritasium video titled The Most Radioactive Places on Earth. It's awesome ... truly!

Watch Video

Twisting the Dragon's Tail

We will watch a few segments from the PBS documentary on Uranium: Twisting the Dragon's Tail with Derek Mueller of Veritasium fame.

Nuclear Power Plant Video Series

If we have time, someday we will discuss nuclear power. The following 3-part YouTube video series provides an understandable pro-con approach to the topic.

You Might Also Like ...

The Radium Girls by Hank from SciShow

Mr. H's Little Secret

Pssss.  Hey bud! I have a secret to share. Now that you know how to calculate the molar mass, here's a little cheat you should be permitted to use. It's called a Molar Mass Calculator and you will find several by following the links below. You type in the formula and it calculates the molar mass.

WebQC Chemical Portal (one of my favorites)

EndMemo (allows formula or name entry)

Environmental Chemistry (scroll to bottom)

Molecular Weight Calculator by Lenntech

or Google, e.g. molar mass Al2(SO4)3

    Online Homework


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Today in Class

> Tuesday, June 4 <<

Focus Question(s):
  • How can half-life be used to determine the age of objects?
  • How can Einstein's E=mc2 equation be used to quantify the stability of nuclei?
  • How does nucleosynthesis explain the formation of elements?

  • Discuss Half Life/Practice (p. 12, Q#5-7)
  • Discuss Binding Energy/nucleon; ∆E=mc2; binding energy curves
  • Video: The Most Radioactive Places on Earth
  • Any Qs on Final Exam?
  • Nuclear Power Plant
  • Quiz on Nuclear Chemistry

  • Prepare for Final Exam

Next Time in Class

>> Thursday, June 6 <<

The Final Exam is in the Lyceum at 8:15 AM on Thursday. Bring your note card. Bring a non-inspired calculator.

Periodic Tables

Are you in need of a periodic table?  Try one of the following websites:

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