an isotope of what element is used as the standard for the atomic mass unit?\na helium\nb carbon\nc…
an isotope of what element is used as the standard for the atomic mass unit?\na helium\nb carbon\nc oxygen\nd hydrogen
Answer
Brief Explanations:
The standard for the atomic mass unit is based on the carbon - 12 isotope. It is defined as one - twelfth of the mass of a carbon - 12 atom.
Answer:
B. carbon