Which is the correct order for the steps in the formation of a black hole? A chemical reaction takes place in a star, stars emit radiation converting millions of tons of hydrogen into helium, the star uses all its hydrogen, helium burns off, heavier elements are created, and the star collapses in on itself. Stars emit radiation converting millions of tons of hydrogen into helium, helium burns off, heavier elements are created, the star collapses in on itself, chemical reaction takes place in a star, the star uses all its hydrogen. The star collapses in on itself, heavier elements are created, stars emit radiate converting millions of tons of hydrogen into helium, helium burns off, chemical reaction takes place in a star, the star uses all its hydrogen. The star uses all its hydrogen, the star collapses in on itself, heavier elements are created, stars emit radiation converting millions of tons of hydrogen into helium, helium burns off, chemical reaction takes place in a star