what does sun and the star's nucleus consists of
Answers
Answer:
Answer:Roughly three quarters of the Sun's mass consists of hydrogen (~73%); the rest is mostly helium (~25%), with much smaller quantities of heavier elements, including oxygen, carbon, neon, and iron. The Sun is a G-type main-sequence star (G2V) based on its spectral class.
Answer:
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Explanation:
There is the production of energy by the process nuclear fusion in the core of sun and other stars. Hydrogen atoms combine with each other to form a big Helium atom and this releases energy in a very big amount.There is enough temperature and pressure so that the protons can combine with each other to form a big atom and then that energy is transported toward the surface of the star from the core. The fusion process depends upon the type and class of the star as there can be the fast reaction in a blue star that is very hot as compared to the stars like our sun. the process of nuclear fusion is least in the red giant stars. some examples of red giant stars are are Betelgeuse,UY Scuti etc. the energy production in white giant stars is also so more than our sun and an example of white giant star can be Rigel.