TIA – Nuclear Chemistry

What type of radiation consists of helium nuclei? (TEKS 14(A))

• Alpha

• Beta

• Gamma

• Neutron

Answer explanation

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NGSS.HS-PS1-8

In the decay of U-238 to Th-234, what is emitted? (TEKS 14(B))

• Beta particle

• Alpha particle

• Gamma ray

• Electron

Answer explanation

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NGSS.HS-PS1-8

Nuclear fission involves— (TEKS 14(A))

• A) Combining nuclei

• B) Splitting a nucleus

• C) Emitting gamma rays

• D) Forming isotopes

Answer explanation

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NGSS.HS-PS1-8

What particle is emitted in beta decay? (TEKS 14(B))

• Proton

• Neutron

• Electron

• Alpha particle

Answer explanation

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NGSS.HS-PS1-8

What is the product of alpha decay of Ra-226? (TEKS 14(A))

• Rn-222

• Po-218

• Th-230

• Ra-224

Answer explanation

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NGSS.HS-PS1-8

In nuclear fission of U-235, what is a typical product alongside energy? (TEKS 14(C))

• Two smaller nuclei and neutrons

• One larger nucleus and protons

• Alpha particles and gamma rays

• Electrons and positrons

Answer explanation

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NGSS.HS-PS1-8

There are several safety mechanisms in nuclear fission reactors. What makes nuclear fission need so many safety features?

• Nuclear fission is a natural chain reaction, but the safety features are just for regulation purposes.

• Nuclear fission is a chain reaction that can get out of control.

• Nuclear fission requires extremely high temperatures.

• Nuclear fission is hypothetical and not yet realized.

Answer explanation

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NGSS.HS-PS1-8

Which of the following statements is true of a nuclear fission reaction?

• Nuclear fission has no commercial uses

• Nuclear fission takes place at very high temperatures only

• Nuclear fission releases large amounts of energy as nuclei of atoms split apart

• Nuclear fission produces no radioactive waste

Answer explanation

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NGSS.HS-PS1-8