Why does chemical composition change most rapidly in the center of a star?
Question:
Why does chemical composition change most rapidly in the center of a star?
Star:
The elements heavier than hydrogen and helium are present due to the fusion reaction in stars. This reaction provides energy to the stars. It is predicted that the lighter elements in the periodic table like hydrogen, helium, lithium, and beryllium were formed in the big bang explosion as the temperature in the early universe was so high. In the stars during nuclear fusion hydrogen gets converted to helium and then helium further fuses to form heavier elements during further stages. This happens only in the case of massive stars.
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View this answerIn a high mass star when the nuclear fuel is empty, that means no hydrogen is left for fusion. In such cases, the helium gets converted into higher...
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Chapter 8 / Lesson 1Learn about the life cycle of stars and what transpires over the billions of years they exist. Discover how they form in nebulae, and explore the three following stages known as the main sequence stage, the giant stage, and the cooling or explosive stage.