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

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

The remaining 2% of the Sun's mass is composed of other elements in trace amounts, including:

* Oxygen

* Carbon

* Neon

* Iron

* Silicon

These elements are heavier than hydrogen and helium and are found in the Sun's core.