AP Physics 2
15.8 Types of Radioactive Decay
15.7 Fission, Fusion, and Nuclear Decay
A stationary nitrogen-13 nucleus (\(^{13}_{7}\text{N}\)) undergoes positron emission (\(\beta^+\) decay). The decay produces a daughter nucleus, a positron (\(\text{e}^+\)), and an electron neutrino (\(\nu_\text{e}\)). Neutral atomic masses and particle masses are given in the table below:
Assuming \(1 \text{ u} = 931.5 \text{ MeV/c}^2\), which of the following correctly identifies the daughter nucleus and the net energy released in the decay?
| Particle / Atom | Mass (u) |
|---|---|
| Neutral Nitrogen-13 (\(^{13}_{7}\text{N}\)) | 13.0057 |
| Neutral Carbon-13 (\(^{13}_{6}\text{C}\)) | 13.0000 |
| Neutral Oxygen-13 (\(^{13}_{8}\text{O}\)) | 13.0060 |
| Positron / Electron (\(\text{e}^+\) / \(\text{e}^-\)) | 0.00055 |
Assuming \(1 \text{ u} = 931.5 \text{ MeV/c}^2\), which of the following correctly identifies the daughter nucleus and the net energy released in the decay?
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