The atomic mass unit is defined as:
A) the mass of the hydrogen atom containing only one proton.
B) the mass of electrons found in a carbon atom containing six protons and neutrons.
C) 1/12 the mass of a carbon atom containing six protons and six neutrons.
D) 1/14 the mass of a nitrogen atom containing 7 protons and 7 neutrons.
E) none of the above
Answer: C