Question: a what element is formed during the main sequence of...
(a). What element is formed during the main sequence of stellar evolution?
(b). Which one of the following elements would you expect not to occur in the first-generation white-dwarf-star: carbon, sodium, or boron?
(c). List the following elements in the order of abundance you would expect to find in a massive star from the core to the outside: helium, silicon, hydrogen, iron, and oxygen.