Small stars create small elements why?

Answer 1

Elements are the same size regardless of how they are synthesized. It is true, however, that small stars create fewer elements, and that the elements they create are lighter. A normal G-type star can, during the course of its evolution along the Main Sequence, produce elements up to iron. For elements heavier than that, larger stars are required; when they go nova, they can produce elements as heavy as uranium and beyond.