The atomic mass is an average of an element's atomic masses, weighted by the natural abundance of each isotope of that element. It is a weighted average because ... ... <看更多>

The average atomic mass is useful because its numerical value is equal to the molar mass of the element. This in turn is useful to know how ... ... <看更多>

Feb 19, 2019 - Average atomic mass is not a direct measurement of a single atom. Instead, it is the average mass per atom for a typical sample of a given ... ... <看更多>