Eli5 Why can’t Stars use Iron in nuclear fusion?

Question

Eli5 Why can’t Stars use Iron in nuclear fusion?

In: 36

Answer 1

It isn’t that they don’t fuse iron it is that the process of fusing energy with iron and heavier elements is that in fusing them uses energy, which is why with heavier elements when you split them apart they release energy (nuclear fission) https://youtu.be/w1GlDVt1Mpk