Average Atomic Mass
Definition
The average atomic mass is the weighted average of all naturally occurring isotopes of an element. It takes into account both the mass and abundance (% occurrence) of each isotope.
Related terms
Weighted Average: An average where each value has a different level of importance or frequency.
Abundance: The relative proportion or quantity of a particular species present in a sample.
Element: A substance consisting entirely from atoms with the same number of protons.
"Average Atomic Mass" appears in:
Study guides (1)
Practice Questions (2)
An unknown chemical compound X yielded data that showed a mass of 43 amu at 30% abundance, 38 amu at 60%, and 44 amu at 10%. What is the average atomic mass for this compound?
Consider an element with 206 amu at 25% abundance, 207 amu at 20% abundance, and 208 amu at 55% abundance. What is the average atomic mass?
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