There Are Two Stable Isotopes of Chlorine: Chlorine-35, with a Mass

question 89

Multiple Choice

There are two stable isotopes of chlorine: chlorine-35, with a mass of 34.968853 amu; and chlorine-37, with a mass of 36.965903. Given that the average atomic mass of a chlorine atom is 35.45 amu, which of the following statements is true?

• A) Chlorine contains almost exclusively \(~{}_{17}^{35}\text{Cl}\) with very little\(~{}_{17}^{35}\text{Cl}\)
• B) Chlorine contains more\(~{}_{17}^{35}\text{Cl}\) than\(~{}_{17}^{35}\text{Cl}\).
• C) Chlorine contains roughly equal amounts of\(~{}_{17}^{35}\text{Cl}\) and\(~{}_{17}^{35}\text{Cl}\)
• D) Chlorine contains more\(~{}_{17}^{35}\text{Cl}\) than\(~{}_{17}^{35}\text{Cl}\)
• E) Chlorine contains almost exclusively of \(~{}_{17}^{35}\text{Cl}\), with very little \(~{}_{17}^{35}\text{Cl}\).

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