The Sun is primarily made of plasma, which is a superheated state of matter where electrons are stripped from atoms, creating a mixture of ions and free electrons.

Here's a breakdown of the Sun's composition:

* Hydrogen (H): About 70.6% of the Sun's mass. This is the fuel source for nuclear fusion, the process that powers the Sun.

* Helium (He): About 27.4% of the Sun's mass. Helium is produced as a byproduct of nuclear fusion.

* Other elements: The remaining 2% of the Sun's mass includes trace amounts of heavier elements such as oxygen, carbon, neon, iron, and silicon.

It's important to remember that while the Sun is mostly made of hydrogen and helium, the extreme heat and pressure within its core cause these elements to exist in a plasma state, not as gas.