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.

Grade Level: High School

Subject: Chemistry

Student Files

	Answer Sheet	183.98 KB
	Half-Lives	676.54 KB
	Half-Lives	463.76 KB
	Answer Sheet	176.03 KB

Teacher Files

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Source Collection: Lab #19A