What is the suns chemical makeup?

Answer 1

hydrogen (75%) and helium (25%), roughly yes, but to be more precise:

The sun consists of 71 % Hydrogen, 27 % Helium, 1 % Oxygen and the last percent is made of Carbon, Nitrogen, Silicon, Magnesium, Neon, Iron and Sulfur.

Answer 2

The sun consists of 71 % Hydrogen, 27 % Helium, 1 % Oxygen and the last percent is made of Carbon, Nitrogen, Silicon, Magnesium, Neon, Iron and Sulfur.
74% hydrogen, 24% helium and 2% of other things, roughly. But to be more precise:

The sun consists of 71 % Hydrogen, 27 % Helium, 1 % Oxygen and the last percent is made of Carbon, Nitrogen, Silicon, Magnesium, Neon, Iron and Sulfur.

Answer 3

The Sun is composed mainly of hydrogen (about 74%) and helium (about 24%). Other elements like oxygen, carbon, neon, and iron make up the remaining 2% of the Sun's composition.