Answer
$ _{94}^{239}Pu + _{2}^{4}He → _{95}^{240}Am + _{1}^{1}p + 2 \space _{0}^{1}n$
Work Step by Step
When Pu-239 reacts with an alpha particle, Am-240 is produced along with a proton and 2 neutrons.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.