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OpenStudy (anonymous):

Calculate the atomic weight of an element (X) given the following information: 26X: 26.000 amu at 0.1102 fractional abundance 28X: 28.000 amu at 0.6487 fractional abundance 29X: 29.000 amu at 0.2411 fractional abundance AND What element might the above problem describe? Please enter the atomic number. For example, if it is Hydrogen, enter 1.

OpenStudy (anonymous):

28.02 and si (14)

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