How do you calculate the maximum and minimum mass of an element?
The mass of an element is calculated by taking an average of the abundance of all the isotopes of the corresponding element. For example: Chlorine has a 75% abundance of 35g/mol and 25% abundance of 37g/mol so it would have a relative atomic mass of 35.5g/mol. So in answer to your question the maximum mass would be the largest isotopic mass and the minimum mass would be the smallest isotopic mass.
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