The isotopic makeup of an element is determined by Mass Spectrometry, a method for
measuring the atomic masses and abundances of atomic-scale particles very precisely.
Silicon-28 was analysed in a Mass Spectrometer and a ratio of 2.331411 was
obtained. Determine the atomic mass of silicon-28.
Silicon-28: Mass = 27.9769 amu f.a. = 92.18% ÷ 100 = 0.9218.
silicon-28 atom (CHEBI:37975) The stable isotope of silicon with relative atomic mass 27.9769265.
0.9218 = 27.9769
2.331411 = ?