The age of Earth is over 4.4 billion years. This was determined by radioactive dating. Which of the following radioactive isotopes could NOT be used to determine the age of the Earth?

${}_{37}^{87}$Rb

${}_{92}^{238}$U

${}_{19}^{40}$K

${}_{6}^{14}$C

Chemistry

College Board

Exam No：AP Chemistry Problem Set 5 Year：2024 Question No：APChemistry2024AP0165

Answer:

6.6 Introduction to Enthalpy of Reaction

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