Which of the Following Represents a Pair of Isotopes

question 9

Multiple Choice

Which of the following represents a pair of isotopes?

• A) (¹⁵₇N, ¹⁵₈O)
• B) (¹²₆C, ¹³₆C)
• C) (¹⁸₈O, ¹⁹₉F)
• D) (³²₁₆S, ³²₁₆S^2-)
• E) (O₂, O₃)

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