Stars like the Sun probably do not form iron cores during their evolution because
A) all the iron is ejected when they become planetary nebulas.
B) their cores never get hot enough for them to make iron by nucleosynthesis.
C) the iron they make by nucleosynthesis is all fused into uranium.
D) their strong magnetic fields keep their iron in their atmospheres.
E) None of these choices is correct.

Question

Quizplus · Accepted Answer

Stars like the Sun do not reach the necessary temperatures and pressures in their cores to fuse elements into iron. They end their lives as white dwarfs after shedding their outer layers, without forming iron cores.

Stars Like the Sun Probably Do Not Form Iron Cores