🤓 Based on our data, we think this question is relevant for Professor Guo's class at GSU.
Solution: The element X has three naturally occuring isotopes; aX, bX, and cX, where a, b, and c represent the mass number. The masses (amu),except aX, and the percent abundances of the isotopes are given in the table below. The average atomic mass of X is 17.20 amu. What is the mass of aX in amu?