Carbon-13 and Carbon-14 have the same atomic number since they have the same number of protons. These atoms, still being carbon atoms, will basically have the same reactivity in biological reactions.
What is true about carbon-13 and carbon-14?
A. They are isotopes.
B. They have the same atomic mass.
C. They have the same number of of neutrons in their nuclei.
D. They behave differently in biological reactions.
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