Question

which element has the greatest average atomic mass?
○ iodine
○ bromine
○ tellurium
○ krypton

Explanation:

The average atomic masses of the elements are: iodine (126.90 amu), bromine (79.90 amu), tellurium (127.60 amu), krypton (83.80 amu). Comparing these values, tellurium has the highest average atomic mass.

Answer:

tellurium