Stony meteorites are made up of minerals that contain silicates, which are materials made of silicon and oxygen . One particular meteorite contains a silicone composition that differs from that on earth. This sample of silicon contains three isotopes, ^ 28 S i (27.846 amu, 45.97% abundant), ^ 29 Si (28.901 amu, 26.52% abundant) and ^ 30 Si If the average atomic mass of this sample of silicon is 28.70 amu, what is the mass of the 30 Si isotope in amu? Enter

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Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.