* Hydrogen (H): Makes up about 70.6% of the Sun's mass.

* Helium (He): Makes up about 27.4% of the Sun's mass.

While these two gases are dominant, there are trace amounts of other elements present as well. These include:

* Oxygen (O)

* Carbon (C)

* Neon (Ne)

* Iron (Fe)

* Silicon (Si)

* Magnesium (Mg)

* Sulfur (S)

* Nickel (Ni)

* Calcium (Ca)

* Chromium (Cr)

These trace elements make up less than 2% of the Sun's mass but play important roles in various processes within the Sun, like nuclear fusion.