The atomic mass of an element is calculated by taking the weighted average of the masses of all naturally occurring isotopes of that element. Each isotope's mass is multiplied by its relative abundance (percentage occurrence), and the results are summed to get the atomic mass. In other words, it is calculated by taking into account the masses and abundances of all isotopes of that element.
The atomic mass of an element is calculated by taking the weighted averages of naturally occurring isotopes of that element. Isotopes of an element have the same number of protons but different numbers of neutrons in their nuclei, resulting in different atomic masses. The atomic mass is determined by considering the abundance of each isotope and calculating the average mass based on their relative proportions.
