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nuclear physics
2. Series 9. Year - 2. nukleony
The table shows masses of several nuclei. Determine the mean distance between nucleons in the nucleus of He_{3}
<table> <tr> <th>nucleus</th> <th>neutron</th> <th>proton</th> <th>deuterium</th> <th>tritium</th> <th>helium He_{3}</th> </tr> <tr> <td>mass [10^{–27} kg]</td> <td>1,674929</td> <td>1,672623</td> <td>3,343590</td> <td>5,008271</td> <td>5,008239</td> </tr> </table>