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Pretest: Energy and Changes in Matter

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Describe what happens to a carbon-11 atom when it undergoes positron emission.

The decay of a carbon-11 atom ___________, and this causes it to emit ___________.

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Answer :

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Final answer:

Positron emission involves the emission of a positron from the nucleus, converting a proton into a neutron and a positron, as seen in the decay of carbon-11 to boron-11.


Explanation:

Positron emission is a type of radioactivity where a positron is emitted from the nucleus, converting a proton into a neutron and a positron. An example is the decay of carbon-11 to boron-11 in positron emission. This process does not change the mass number but decreases the atomic number by 1.


Learn more about Positron emission here:

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