Acompound of uranium and fluorine is used to generate uranium for nuclear power plants. the gas can be decomposed to yield 2.09 parts by mass of uranium for every 1 part by mass of fluorine. if the relative mass of a uranium atom is 238 and the relative mass of a fluorine atom is 19, calculate the number of fluorine atoms that are combined with one uranium atom. i want to know how to solve this problem, .