7A. Calculations of the primordial material that would form a\"quark soup\" a few hours after the Big Bang show that the earlyuniverse consisted almost entirely of hydrogen(11H = 76 weight %) and helium(42He = 24 weight %). The present-day atomicratio of H/He is estimated as 12.5/1. Assuming the present universeconsists ONLY of H and He, calculate the present-day wt. % of H andHe.
B. Does the present-day wt. % of H and He agree with the BigBang theory?
C. What physical mechanism(s) explain(s) why the present-day wt.% of H and He does/does not agree with the Big Bang theory?
