X, an unknown element, has two isotopes. The first isotope has a mass of 68.93 amu and the other isotope has a mass of 7
Posted: Thu Jun 30, 2022 6:21 pm
X, an unknown element, has two isotopes. The first isotope has amass of 68.93 amu and the other isotope has a mass of 70.936 amu.If the average mass of an X atom is 69.054 amu, what is the percentabundance of the first isotope?