The table below gives the data that is needed to calculate the average atomic mass of element b. isotope atomic mass (amu) relative abundance (%) b-10 10.01 19.91 b-11 11.01 80.09 based on these data, what is the average atomic mass of element b? 10.01 10.51 10.81 11.01

Explanation:

The atomic mass of B is the weighted average of the atomic masses of its isotopes.

We multiply the atomic mass of each isotope by a number representing its relative importance (i.e., its percent of the total).

Set up a table for easy calculation:

The average atomic mass of B is .

c is the answer because when something is left after something evaporates that shows the chemical change.