Question

Which of the following units is NOT used to measure atomic mass?

A) O
B) Daltons, Da
C) amu, atomic mass units
D) grams, g

Answer 1

The unit that is NOT used to measure atomic mass is grams (g). Instead, atomic mass is typically measured in atomic mass units (amu).

Step-by-step explanation:

The unit that is NOT used to measure atomic mass is grams (g). Atoms and subatomic particles are so small that it doesn't quite make sense to measure their masses in grams. Instead, a more useful unit to measure atomic mass is the atomic mass unit (amu). One atomic mass unit is defined as one-twelfth the mass of a carbon-12 atom.