Segments in this Video

Part A: Introduction (01:36)

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A radioactive substance's half-life is a measurement of how long it will take to decay. Nuclear decay is a random process. Different radionuclides decay at different rates.

Part B: What is Half-Life? (06:25)

Half-life is the time it takes for half a substance to decay. The number of atoms halves every half-life. A half-life can range from hours to billions of years depending on the substance.

Part C: Activity (in Becquerels) (06:48)

Radionuclides with short half-lives create more radiation per second than radionuclides that have a long half-life. A sample's activity is the number of decays that occur per second.

Credits: Episode 5: Half-Life and Activity (Shedding Light on Nuclear Radiation) (00:41)

Credits: Episode 5: Half-Life and Activity (Shedding Light on Nuclear Radiation)

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Episode 5: Half-Life and Activity (Shedding Light on Nuclear Radiation)

Part of the Series : Shedding Light on Nuclear Radiation
3-Year Streaming Price: $99.95

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Description

In Shedding Light on Nuclear Radiation Episode 5: Half-Life and Activity, we examine how quickly radiation is given off by radiation-emitting substances. Some radioactive substances emit lots of radiation in a short amount of time while others emit radiation very slowly. These different rates of emission can be expressed in a quantitative way using the concepts of “half-life” and “activity”.

Length: 16 minutes

Item#: BVL285161

Copyright date: ©2023

Closed Captioned

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Not available to Home Video customers.


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