Chemistry, 31.07.2019 22:40 sumansmith5288
Silicon, which makes up about 25% of earth's crust by mass, is used widely in the modern electronics industry. it has three naturally occurring isotopes,28si,29si, and30si. calculate the atomic mass of silicon to 4 decimal places. isotope isotopic mass (amu) abundance (%) 28si 27.976927 92.23 29si 28.976495 4.67 30si 29.973770 3.10
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