Nuclear Reactions

Takes two small nuclei and combines them into a larger nucleus

• fission

• fusion

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NGSS.HS-PS1-8

How is nuclear fusion different from nuclear fission?

• In fusion, the product is a larger atomic nucleus.

• Fission produces energy but fusion does not.

• Fusion produces energy but fission does not.

• In fission, the product is a larger atomic nucleus.

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This is an example of ---

• Radioactive Decay

• Nuclear Fission

• Nuclear Fusion

• Fossil fuel reaction

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NGSS.HS-ESS1-1

Which type of nuclear radiation is being emitted here?

• alpha

• beta

• gamma

• none

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What makes something radioactive?

• elements with an atomic number above 81

• an unstable nucleus

• contaminated sewage

• It decays over time

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Has a mass of 4 and a charge of +2

• Alpha

• Beta

• Gamma

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An unstable nucleus releases radiation in the form of a helium particle. What process is occurring?

• Fusion

• Fission

• Alpha Decay

• Beta Decay

Answer explanation

The correct process occurring when an unstable nucleus releases radiation in the form of a helium particle is Alpha Decay.

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NGSS.HS-PS1-8

An unstable nucleus releases radiation in the form of an electron particle. What process is occurring?

• Fusion

• Fission

• Alpha Decay

• Beta Decay

Answer explanation

Beta Decay is the process where an unstable nucleus releases radiation in the form of an electron particle, making it the correct choice in this scenario.

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NGSS.HS-PS1-8

Which particle completes the equation below?

• Alpha Particle

• Beta Particle

• Gamma Particle

• Proton

Answer explanation

The correct particle to complete the equation is the Beta Particle, as it is commonly used in nuclear reactions and decay processes.

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The alpha decay of ( ^{238}_{92}U ) produces an atom with a mass number of...

• 234

• 236

• 238

• 240

Answer explanation

The alpha decay of uranium-238 (^{238}_{92}U) results in an atom with a mass number of 234, as the alpha particle has a mass number of 4 and the remaining atom has a mass number of 238-4=234.

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