Question 9 Element W has two natural isotopes: W-10 (10.013 amu) and W-11 (11.009 amu). Calculate the atomic mass of element W given the abundance of W-10 is 19.66%. 10.81 amu O 10.21 amu 4.133 amu O 10.51 amu

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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.