Copy of 1.) Radioactivity Intro (5/28/2026) - Jason Poe | Knihovna

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When an atom releases energy and/or particles from their nucleus -

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Radioactivity is a type of chemical reaction.

True

False

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Radioactivity is caused by:

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Which type of radioactive particle is the most likely to cause disease or death?

Alpha

Beta

Gamma

Lambda

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What element serves as the alpha particle?

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What happens to the atomic number of the decaying uranium nucleus during alpha decay?

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What happens to the atomic number of the nucleus of thorium during beta decay?

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What causes the atomic number of thorium to change during beta decay?

Conversion of a neutron to a proton

Release of an electron

Positrons colliding with the electron

Protactinium

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Does helium undergo a radical change during gamma decay?

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What can be used to stop gamma rays?

lead

steel

thick layer of soil (underground)

concrete

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During fission, the nucleus of the atom will .

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What is fission used for?

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Fusion is caused by small nuclei.

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What are the two problems with the idea of using fusion as a source of electricity?

Extreme temperatures are released

Not realistic, yet

It's too cold to contain

It requires rare material

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Smoke detectors (home fire alarms) are radioactive.

True

False - that would be stupid