Alpha Decay
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About
Topics
- Alpha Decay
- Half Life
- Radiation
Description
Watch alpha particles escape from a polonium nucleus, causing radioactive alpha decay. See how random decay times relate to the half life.
Sample Learning Goals
- Explain what happens in alpha radiation.
- Predict what happens to an element when it undergoes alpha decay.
- Explain the concept of half life, including the random nature of it.
- Begin to gain an understanding of the forces that work to hold an atomic nucleus together (strong nuclear force) and the forces that work to break it apart (Coulomb, i.e. electric charge, force).
For Teachers
Teacher Tips
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Overview of sim controls, model simplifications, and insights into student thinking (PDF). |
Teacher-Submitted Activities
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Authors | Level | Type | Updated |
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| Visualization and Visual Illusions SIM Homework |
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Kathy Perkins, Carl Wieman | UG-Intro | HW | 5/26/15 |
| Using PhET in High School Chemistry- all my activities in pdf |
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Trish Loeblein | UG-Intro HS |
Lab CQs Demo HW |
5/19/15 |
| Concept Questions for Chemistry using PhET |
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Trish Loeblein | HS MS UG-Intro |
CQs | 7/9/13 |
| Alpha Decay investigations |
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Trish Loeblein | HS UG-Intro |
Lab CQs |
4/29/12 |
| PhET LAB Alpha (IB 7.2) |
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Benjamin Forbes | HS | Lab | 2/16/15 | |
| Nuclear Processes |
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Phil Cook | HS | Lab | 5/2/10 | |
| Alignment of PhET sims with NGSS |
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Trish Loeblein | HS | Other | 10/19/15 | |
| How do PhET simulations fit in my middle school program? |
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Sarah Borenstein | MS | Other | 10/19/15 | |
| PhET Sims Aligned to the Chemistry Curriculum |
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Julia Chamberlain | UG-Intro HS |
Other | 5/27/15 | |
| MS and HS TEK to Sim Alignment | Elyse Zimmer | HS MS |
Other | 10/19/15 | ||
| Radioactivity | MEHMET EMIN KALE | HS UG-Intro |
HW Lab |
6/8/13 | ||
| Instructor | Clarence Canty | Other | CQs Lab |
8/19/10 | ||
| Phet Alpha Decay Simulation Lab | Drew Isola | HS | Lab Other |
6/26/10 | ||
| Spinometer | Chris Mounce | UG-Adv | Demo | 7/28/09 | ||
| Radioactive Decay, Fission and Chain Reactions | Debra Krause Dandaneau | UG-Intro HS |
Lab Other |
4/17/09 | ||
| Intrinsic Randomness | Roberta Tevlin | HS | CQs | 10/9/08 | ||
| 알파붕괴 SIM 사용지침서 | 이화국(Wha Kuk Lee) | HS UG-Intro |
Lab Demo |
5/17/13 |
Translations
Related Simulations
Software Requirements
| Windows | Macintosh | Linux |
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Microsoft Windows XP/Vista/7 Sun Java 1.5.0_15 or later
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OS 10.5 or later Sun Java 1.5.0_19 or later
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Sun Java 1.5.0_15 or later
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Credits
| Design Team | Third-party Libraries | Thanks To |
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