How are the interior elements of a highly evolved high-mass star arranged late in its lifetime, but before the collapse of its iron core?

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    They would be mixed at random evenly throughout the interior.
     Uranium, thorium, plutonium, and lead would collect in the core, eventually triggering a nuclear explosion.
     The interior would consist almost entirely of carbon, with a small iron core.
     An onion-like set of layers would form, with the heaviest elements contained in shells within progressively lighter ones.
     The elements are arranged as a uniform admixture of hydrogen and helium, with a coating of iron.
asked Sep 20, 2012 in Astronomy by anonymous
    

1 Answer

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An onion-like set of layers would form, with the heaviest elements contained in shells within progressively lighter ones.
answered Sep 22, 2012 by SkyStar ~Expert~ (2,855 points)



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