Which nuclear reaction leads to the emission of Ne-18?

The emission of Ne-18, or Neon-18, occurs during the specific nuclear reaction represented by the choice involving 20Ne. In this reaction, a deuteron (d) bombards a Ne-20 nucleus, resulting in the emission of an alpha particle and producing Ne-18.

This reaction highlights the process of nucleon interactions in heavier isotopes where the addition of a deuteron to Ne-20 facilitates the release of an alpha particle while simultaneously rearranging the remaining nucleons, resulting in the synthesis of Ne-18. This reaction showcases how heavy isotopes can be manipulated to achieve specific neutron and proton configurations.

In contrast, the other reactions listed do not lead to the formation of Ne-18. They involve different target isotopes and particles, which produce other reaction products that do not include Ne-18. Understanding the specific nuclear interactions, such as which particles are involved and the resulting isotopes, is key in identifying the correct reaction leading to Ne-18 production.