The proportion of hydrogen to helium in the red giant is infinitesimally small.
A red giant is a stage in the star life where hydrogen gets fused with helium. Stars are on the zero main sequences when they initially begin to fuse hydrogen to helium. The length of time a star remains in the main-sequence stage is proportional to its mass.
Higher-mass stars finish each stage of development faster compared to lower-mass stars. When a star(e.g. sun) dies, it becomes a red giant composed of majorly helium. The synthesis of hydrogen to produce helium alters the inner composition of a star, causing variations in its temperature, brightness, and width.
Therefore, we can conclude that the proportion of hydrogen to helium in the red giant is infinitesimally small.
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