Chapter 10 nuclear Chemistry PRE quiz

Which process produces alpha particles?

• Alpha decay
• Beta decay
• Gamma decay
• Nuclear fusion

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NGSS.HS-PS1-8

Which process involves the splitting of large nuclei?

• Beta decay
• Alpha decay
• Nuclear fission
• Nuclear fusion

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The time taken for half of an amount of radioactive atoms to decay.

• Nuclear fusion
• Full-life
• Dead time
• Half-life

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The nuclear process occurring at a nuclear power plant.

• Nuclear fusion
• Nuclear fission
• Combustion
• Multiplication

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Complete the sentence: As time passes the level of radiation produced by a radioactive material...

• Decreases
• Increases
• Remains constant

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Alpha particles have a _____ charge.

• +2
• 0
• +1
• -1

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Barium-122 has a half-life of 2 minutes. A fresh sample weighing 80 g was obtained. If it takes 10 minutes to set up an experiment using barium-122, how much barium-122 will be left when the experiment begins?

• 0.25g
• 2.5g
• 25g
• 80g

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NGSS.HS-PS1-8

What does it mean when an element is radioactive?

• atom emits radiation
• nucei unstable due to uneven p to n ratio
• nuclei changes to become stable
• all of the above

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In what part of an atom can protons be found? 

• Inside the electrons
• Inside the neutrons 
• Inside the atomic nucleus 
•  Inside the electron shells

Which type of nuclear radiation is being emitted here?

• Alpha
• Beta
• Gamma 
• none

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NGSS.HS-PS1-8