What are the 2 most abundant Baryonic elements in the Expanding Universe. ** Think about the fuel making elements in the core of a star...
a
hydrogen and helium
b
carbon and oxygen
c
lithium and uranium
d
iron and nickel
1 answer
The correct answer is d) iron and nickel. Hydrogen and helium are the most abundant elements in the universe, but in terms of baryonic elements, the two most abundant elements in the core of stars, which are responsible for nuclear fusion reactions, are iron and nickel.
1 answer