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Gallium arsenide, gaas, has gained widespread use in semiconductor devices that convert light and electrical signals in fiber-optic communications systems. gallium consists of 60.% 69ga and 40.% 71ga. arsenic has only one naturally occurring isotope, 75as. gallium arsenide is a polymeric material, but its mass spectrum shows fragments with the formulas gaas and ga2as2. what would the distribution of peaks look like for these two fragments?
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