The Element Oxygen Consists of Three Naturally Occuring Isotopes: ¹⁶O

question 47

Multiple Choice

The element oxygen consists of three naturally occuring isotopes: ¹⁶O, ¹⁷O, and ¹⁸O.The atomic mass of oxygen is 16.0 amu. What can be implied about the relative abundances of these isotopes?

• A)More than 50% of all O atoms are ¹⁷O.
• B)Almost all O atoms are ¹⁸O.
• C)Almost all O atoms are ¹⁷O.
• D)The isotopes all have the same abundance, i.e.33.3%.
• E)The abundances of ¹⁷O and ¹⁸O are very small.

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