Question

What are the two most common elements found in stars?

Answer 1

Hint: There are nearly about four hundred billion stars in our Milky Way galaxy. Our Sun is also one of the many stars in the Milky Way galaxy. The composition of stars touches many related questions such as how do stars form? And how do they shine? These stars begin their early life as an ordinary dense cloud of interstellar matter that becomes unstable and begins to collapse. To study the composition of stars astronomers study the spectrum of the star.

Complete answer:
Stars are made up of very hot gases. Stars are called huge celestial bodies that are mostly made up of hydrogen and helium. The overwhelming majority of elements formed in the Big Bang theory are hydrogen and helium. Stars will fuse hydrogen and helium to make the other heavier elements in the periodic table. However, this has been affected only a small portion of the primordial mixture of mostly hydrogen and helium. They shine by fusing hydrogen into helium in their core. Most of the stars that we see in our night sky are living in their main sequence stage including our sun. Stars in their main sequence fuse hydrogen atoms to form helium in their cores.

Therefore the most common elements found in the stars are hydrogen and helium.

Note:
We have said that our sun and ninety percent of the stars in the universe are in the main sequence stage. The life cycle of the star starts in a giant gas of cloud. And then it goes to the protostar stage in which the star will be a warm clump of molecules. And then it enters into the T-Tauri stage in which the materials stop falling into the corresponding stars. After this stage, it enters into the main sequence stage in which the stars begin the nuclear fission that is converting hydrogen into helium. And after the main sequence stage, the life cycle of the star differs according to the size of the star.