Radiation Types

Which best describes gamma radiation?

• A helium nucleus.

• A fast moving electron.

• High frequency electromagnetic wave.

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How does gamma radiation affect the nucleus?

• Emits excess energy in a burst of electromagnetic radiation.

• Increases proton number by one, reduces neutron by one. A neutron changes into a proton and emits a fast moving electron.

• Reduces the proton number by two and the neutron number by two, emitting a helium nucleus.

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How does alpha radiation affect the nucleus?

• Emits excess energy in a burst of electromagnetic radiation.

• Increases proton number by one, reduces neutron by one. A neutron changes into a proton and emits a fast moving electron.

• Reduces the proton number by two and the neutron number by two, emitting a helium nucleus.

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Which of the following statements is true about gamma (γ) rays?

• Gamma rays are particles with a positive charge.

• Gamma rays have mass and travel slowly.

• Gamma rays are a form of high energy electromagnetic radiation.

• Gamma rays are particles with a negative charge.

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Which type of radiation is equivalent to a helium nucleus?

• Alpha radiation

• Beta radiation

• Gamma radiation

• Neutron radiation

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Which type of radiation is most easily absorbed and travels only a few centimeters in air?

• Alpha

• Beta

• Gamma

• Neutron

What are the three types of radioactive decay?

• Alpha, Beta, and Delta

• Alpha, Beta, and Gamma

• Alpha, Gamma, and Delta

• Beta, Gamma, and Delta

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What is an alpha particle made up of?

• 2 protons and 2 neutrons

• 2 protons and 2 electrons

• 2 neutrons and 2 electrons

• 1 proton and 1 neutron

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What is lost from the nucleus during alpha decay?

• Two electrons and two protons

• Two neutrons and two protons

• Two neutrons and two electrons

• Two protons and two positrons

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Which Greek letter represents alpha radiation?

• β

• γ

• δ

• α

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