Question

multiple choice question
what is the abbreviation for the unit of measurement that is used to express the mass of an atom?
o mg
o amu
o ev
o g

Explanation:

The atomic mass unit (amu) is used to express the mass of an atom. 'mg' is milligram, 'eV' is electron - volt (a unit of energy), and 'g' is gram which is too large for atomic - scale mass measurements.

Answer:

B. amu