The figure above shows the abundance of elements in the galaxy relative to hydrogen. Why does iron have a higher abundance than nearby elements?
A)It has a higher density than other elements, and thus becomes locked away in dust.
B)It is the end product of core fusion in massive stars, and can only be destroyed in rare supernova fusion reactions.
C)It does not; this apparent higher abundance is due to iron's many spectral lines making it easier to find.

Question

Quizplus · Accepted Answer

Iron is the end product of core fusion in massive stars, which means that it can only be destroyed in rare supernova fusion reactions. This leads to a higher abundance of iron relative to nearby elements.

The Figure Above Shows the Abundance of Elements in the Galaxy