Question

One atomic mass unit is how much part the mass of carbon-12 atoms?

Answer 1

Answer:

Explanation:

One atomic mass unit is defined as one-twelfth of the mass of one carbon - 12 atom because C-12 is chosen as the standard atom. This is because it has the equal number of protons and neutrons (6) and constitutes most of the matter.

Answer 2

Explanation:

it is 1/12 of mass of one carbon-12.