4. the ____________ of an element is the average mass of an element’s naturally occurring atom, or isotopes…
4. the ____________ of an element is the average mass of an element’s naturally occurring atom, or isotopes, taking into account the ____________ of each isotope.
Answer
Brief Explanations:
The atomic mass of an element is calculated as the weighted - average mass of its naturally occurring isotopes, where the weights are the relative abundances of each isotope.
Answer:
atomic mass; relative abundance