Responses
the number of protons in each isotope
the number of protons in each isotope
the total amount of the element in the sample or in nature
the total amount of the element in the sample or in nature
the relative abundance of its isotopes
the relative abundance of its isotopes
the charge on each isotope
the charge on each isotope
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To calculate the average atomic mass of an element, the key information needed is the relative abundance of its isotopes.
Thus, the correct response is: the relative abundance of its isotopes.
This information, along with the atomic masses of the isotopes, allows the average atomic mass to be calculated by taking the weighted average based on their abundances.
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