SAT, 16.02.2022 08:10 ichabella2010

A sample of silicon has an average atomic mass of 28. 084amu. In the sample, there are three isotopic forms of silicon. About 92. 22% of silicon atoms are 27. 9769amu, which have the mass of 28si; about 4. 68% are 28. 9764amu, which have the mass of 29si, and the isotope 30si, makes up the remaining 3. 10%. Calculate the atomic mass of 30si. Report your answer with three significant figures.

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A sample of silicon has an average atomic mass of 28. 084amu. In the sample, there are three isotopi...