General Biology
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Which of the following represents the N-15 isotope of nitrogen?
Which of the following statements correctly defines the term "isotopes"?
What is the number of neutrons in an isotope of carbon with an atomic mass of 14 and an atomic number of 6?
What is the method used to calculate the atomic mass of an element?
Which of the following options correctly includes the common use of radioactive isotopes in biological science?