A.
Explanation:
There are several reasons that Carbon-12 was chosen as the standard for determining the relative mass of other atoms.
- Its abundance on earth
- Carbon-12 is a very stable isotope atom
- Its has the same number of neutrons and protons hence more ideal to use for a precise calculation of <em>amu</em> (atomic mass unit) -
The mass of an atom are based on the ¹/12 mass of Carbon-12.
<span>In this question, the authorial voice is best described as the voice used by the voice used by authors when seeming to speak for themselves. The historical author is the one writing the text and his or her opinions may or may not be in the text itself; the "author," meanwhile, is the one who the reader perceives to be behind the narration. The fictional narrator is separate from the author and often has a different personality or point of view altogether. </span>
Choice A is my top choice in this question.
Answer:
A
Explanation:
this best fits the passage
