Question

do you expect the atomic mass of the element to be closer to that of isotope a or to that of isotope b? why?
match the words in the left column to the appropriate blanks in the sentence on the right.
the average atomic mass will be closer to the mass of
because there is about
times as much of
as

(two, four, three, isotope b, isotope a are the words to match)

Explanation:

To determine the matching, we analyze the concept of average atomic mass, which depends on the relative abundance of isotopes. If we assume the abundances: suppose isotope A has a higher abundance. Let's say the ratio of A to B is 3:1 (so three times as much A as B). Then the average atomic mass is closer to A. So the blanks would be filled as: The average atomic mass will be closer to the mass of isotope A because there is about three times as much of isotope A as isotope B.

Answer:

The average atomic mass will be closer to the mass of \(\boldsymbol{\text{isotope A}}\) because there is about \(\boldsymbol{\text{three}}\) times as much of \(\boldsymbol{\text{isotope A}}\) as \(\boldsymbol{\text{isotope B}}\)