Is the sun made out of burning gasses and why?

helium is made from the sun from the atmosphere and is believed to have a percentage of 70 percent. Well, actually, helium isn't made in the sun. But even then, the atmosphere of the sun is actually made up of 54% helium to be exact. (Not far off from what you said, though.)

Correction: Helium IS produced in the sun! hydrogen is fused into helium and this liberates large amounts of energy.