Physics Radioactivity

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What do radioactive atoms do to become stable?
they emit energy in the form of radiation
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What are 2 examples of radioactivity?
Nuclear power plants and nuclear explosions
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How is an alpha particle formed?
An atom decays into a daughter atom and emits an alpha particle which has 2 protons and 2 electrons so it is a helium atom
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What is the definition of alpha radiation?
The nucleus of a helium atom travelling at extremely high speed
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How is a beta particle formed?
An atom decays into a daughter atom by changing a neutron into a proton and electron, but then the daughter atom emits an electron which is the beta particle
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What is the definition of a beta particle?
A fast moving high energy electron
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Sum up the properties of the daughter nucleus
It gains a proton and emits an electron
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How is gamma radiation formed and what is it?
After alpha or beta decay, extra energy is sometimes emitted which is gamma radiation. Gamma radiation is a wave with very high frequency and short wavelength.
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Card 2

Front

What are 2 examples of radioactivity?

Back

Nuclear power plants and nuclear explosions

Card 3

Front

How is an alpha particle formed?

Back

Preview of the front of card 3

Card 4

Front

What is the definition of alpha radiation?

Back

Preview of the front of card 4

Card 5

Front

How is a beta particle formed?

Back

Preview of the front of card 5
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