What is the standard isotope that is used to define the number of atoms in a mole? A).¹⁴N B).¹²C C).⁹Be D).³¹P

Name: What is the standard isotope that is used to define the number of atoms in a mole? A). 14 N B). 12 C C). 9 Be D). 31 P
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The standard isotope used to define the number of atoms in a mole is Carbon-12 (C-12). This isotope of carbon has 6 protons and 6 neutrons, making it the basis for the atomic mass unit and the mole concept in chemistry.

What Is the Standard Isotope That Is Used to Define