Question

Choose the correct pair of isotopes.

• A. ${}_6^{12}C$
• B. ${}_{53}^{127}I$
• C. ${}_2^{4}He$
• D. ${}_1^{2}H$
• E. ${}_2^{3}He$
• F. ${}_{53}^{131}I$
• G. ${}_1^{1}H$
• H. ${}_6^{14}C$

Answer 1

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