Question

question 2. the atomic masses of elements are generally not whole numbers. explain why.

Explanation:

Elements often have isotopes with different masses. Atomic mass is a weighted - average of the masses of its isotopes based on their relative abundances. So, it is usually not a whole number.

Answer:

Elements have isotopes with varying masses, and atomic mass is a weighted - average of isotope masses according to their abundances, resulting in non - whole numbers.