High School / Chemistry

Half-Lives

Students model radioactive decay to determine the half-life of a “radioactive” sample.

Supports NGSS Performance Expectation 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.

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Student Files

19A_answer_sheet.docx 183.98 KB
19A_Half_Lives.docx 676.54 KB
19A_Half_Lives.pdf 463.76 KB
19A_answer_sheet.pdf 176.03 KB
19A_Half_Lives_Google_Slide.pdf 31.40 KB

Teacher Files

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Source: Lab #19A

Essential Chemistry Teacher Lab Manual

Half-Lives