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In different places in the universe, different isotopes become more or less stable than they are...

In different places in the universe, different isotopes become more or less stable than they are on earth. For example, isotropic analysis of silicon found from a meteorite has a different relative abundance than that found on earth. Below is the isotropic data from the meteorite. Calculate the average atomic mass of silicon found from the meteorite.

Isotope Isotopic Mass (amu) Abundance %

28Si 27.976927(amu) 77.67%

29Si 28.976495(amu) 9.23%

30Si 29.973770(amu) 13.10%

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