atoms of the same element with different atomic masses are called

isotopes.
I don't do these fill in the blank problems without limit. You need to do some work before posting many more. Of give us some indication that you are doing more than just filling in blanks.

You are correct! Atoms of the same element with different atomic masses are called isotopes. Isotopes are atoms that have the same number of protons but differ in the number of neutrons in their nucleus. This difference in the number of neutrons leads to different atomic masses for the same element.

To arrive at this answer, you can use your knowledge of basic chemistry principles or conduct a quick internet search. In this case, you can recall that isotopes are variations of the same element and differentiate from each other by having different atomic masses.