Which has more atoms: a 1-gram sample of carbon-12 or a 1-gram sample of carbon-13?
A)a 1-gram sample of carbon-12
B)a 1-gram sample of carbon-13
C)They have the same number of atoms.
D)More information is needed.

Question

Quizplus · Accepted Answer

A 1-gram sample of carbon-12 has more atoms because the atomic mass of carbon-12 is less than that of carbon-13, meaning for the same mass, there would be more atoms of carbon-12 due to its lighter isotopic mass.

Which Has More Atoms: a 1-Gram Sample of Carbon-12 or a 1-Gram