Exploring Nuclear Processes Quiz

Which particle is emitted during alpha decay?

• Electron

• Helium nucleus

• Neutron

• Positron

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SC.SCI.C-PS1-8.PS1.C

What is the symbol for a beta particle?

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SC.SCI.C-PS1-8.PS1.C

Which process involves the absorption of an inner orbital electron by the nucleus?

• Alpha decay

• Beta decay

• Electron capture

• Positron emission

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SC.SCI.C-PS1-8.PS1.C

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SC.SCI.C-PS1-8.PS1.C

Which of the following nuclear equations represents positron emission?

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SC.SCI.C-PS1-8.PS1.C

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SC.SCI.C-PS1-8.PS1.C

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SC.SCI.C-PS1-8.PS1.C

Which of the following is the correct balanced nuclear equation for the fission of uranium-235 as described?

• 235U + 1n → 90Zr + 145La + 2 1n
• 235U + 2n → 92Kr + 140Ba + 1 1n
• 235U + 1n → 93Nb + 142Ba + 2 1n
• 235U + 1n → 92Kr + 141Ba + 3 1n

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NGSS.HS-PS1-8

A scientist observes that a certain isotope decays by emitting a positron. Explain how the atomic number and mass number of the resulting nucleus change, and provide an example equation.

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SC.SCI.C-PS1-8.PS1.C