https://www.britannica.com/science/CNO-cycle
Apparently you don't create oxygen in stars by smashing two beryllium together.
Edit: interestingly, this article provides a different path, claiming C + He = O
https://www.sciencelearn.org.nz/resources/1727-how-elements-...
https://www.britannica.com/science/CNO-cycle
Apparently you don't create oxygen in stars by smashing two beryllium together.
Edit: interestingly, this article provides a different path, claiming C + He = O
https://www.sciencelearn.org.nz/resources/1727-how-elements-...