Nuclear Chemistry: Half-Life & The Decay Series
Nuclear Chemistry: Half-Life & The Decay Series
Nuclear Chemistry: Half-Life & The Decay Series
Nuclear Chemistry: Half-Life & The Decay Series
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Nuclear Chemistry: Half-Life & The Decay Series

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Two Complete Lessons in One! This resource includes an honors level lesson and a standard level lesson!

There are two main concepts included in this lesson; half-life and the decay series. Students should understand that the decay of a radioisotope goes through a series of transmutations – usually by emitting either alpha or beta particles. Also, students should notice that the daughter nuclide of one reaction becomes the parent nuclide of the next nuclear decay.

Before we dive into some half-life problems, I have presented a few animated diagrams of what’s going on during the decay series of an element. Many students have the misconception that half of the material disappears, decays, gone forever! So here we want them to understand that they are going through a transmutation and becoming different elements by not only releasing particles, but also energy in a process to become more stable.

There are many opportunities for students to practice half-life problems with the class, with a partner, and on their own.

Lesson Objectives:
Define half-life and decay series
Interpret and complete a decay series
Solve half-life problems

NGSS:
* HS-PS1-8: Develop models to illustrate the changes in the composition of the nucleus of the atom and the energy released during the processes of fission, fusion, and radioactive decay.
* SEP: Developing and using models
PS1.C: Nuclear Processes
Nuclear processes, including fusion, fission, and radioactive decays of unstable nuclei, involve release or absorption of energy. The total number of neutrons plus protons does not change in any nuclear process.

Prior Knowledge:
Basic understanding of radioactivity, types of radioactive decay, and the symbols of radioactive particles
Writing nuclear equations

Lesson Duration: 1 class period

Included in This Resource:
PowerPoint Presentation – Editable & Animated (Honors & Standard)
Student Notes – Cloze Notes (Honors & Standard
Student Notes – Blank
Student Notes Suggested KEY
Exit Ticket – Check for Understanding w/ KEY
Homework w/ KEY (Honors & Standard)
Teacher Notes

Teacher Prep Time: just print and go!

Note on the PowerPoints: The PowerPoints included in this product are editable. They are also animated, which means that they may appear busy or overlapping in the slide edit mode, but will be awesome in the slide show mode! Please don’t edit the PowerPoints until you have seen them in the slide show mode!
This lesson is appropriate for grades 9-12 chemistry

This will be a lesson you will want to use year after year!
Chemistry Corner
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Nuclear Chemistry: Writing Nuclear Equations
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BellWork/WarmUps Editable For the Entire Year: Chemistry
High School Chemistry Year Curriculum

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