One amu is defined as A) the mass of a proton. B) 1/12 the mass of an atom of ¹²C. C) the mass of an atom of ¹H. D) 1/20 the mass of an atom of ²⁰Ne. E) 1/16 the mass of an atom of ¹⁶O.

Question

Quizplus · Accepted Answer

One amu is defined as 1/12 the mass of an atom of carbon-12, which is the same as the composition ¹²C. Therefore, choice B is correct. The other choices are incorrect because they do not represent the correct definition of one amu.

One Amu Is Defined as