Complex sentence: Alternately, the atomic mass of a carbon-12 atom may be expressed in any other mass units: for example, the atomic mass of a carbon-12 atom is about 1.998467052 x 10 -26 kilogram.
Split into simpler sentences: Alternately, the atomic mass of a carbon-12 atom may be expressed in any other mass units. For example, the atomic mass of a carbon-12 atom is about 1.998467052 x 10 -26 kilogram.