What is the sun's interior composed of?

Jul 26, 2016

Sun is in the state of plasma. The fourth state of matter.

Explanation:

Contents of Sun:

Hydrogen (${H}_{2}$): 73.46%
Helium ($H e$): 24.85%
Oxygen (${O}_{2}$): 0.77%
Carbon ($C$): 0.29%

The fusion takes place in the interior core. See image.