The Element X Has Three Naturally Occurring Isotopes

question 162

Multiple Choice

The element X has three naturally occurring isotopes.The isotopic masses (amu) and % abundances of the isotopes are given in the table below.The average atomic mass of the element is ________ amu.

• A)161.75
• B)162.03
• C)162.35
• D)163.15
• E)33.33

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