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An element consists of an isotope with mass of 10.0129 amu and 19.91% abundance, and another isotope with mass of 11.0093 amu and 80.09% abundance.

An element consists of an isotope with mass of 10.0129 amu and 19.91% abundance, and another isotope with mass of 11.0093 amu and 80.09% abundance. Calculate the average of this element. 1 answer

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