A sample of a compound weighing 416 grams decomposes into 143 grams of iron and 273 grams of chlorine. The percent composition of these products is *blank* iron and *blank* chlorine. Using these values, we can determine that the empirical formula of the compound is Fe*blank* Cl *blank*

Which of the following statements is true about energy quantization at the atomic level? electrons in the outermost orbits are the most stable. electrons in all the orbits around the nucleus have the same amount of energy. electrons in the orbit closest to the nucleus have the least amount of energy. electrons absorb or release the same amount of energy independent of the energy levels.