Define atomic mass unit: What is Atomic Mass

What is Atomic Mass? Every particle of matter has some amount of mass associated with it whether small or large. Everything is made up of atoms. The mass of an atomic particle is called the atomic mass. This is commonly expressed as per the international agreement in terms of a unified atomic mass unit (amu). The atomic mass of an atom is a feature that is closely related to its mass number. A single atom’s atomic mass is just its total mass, and it is commonly given in atomic mass units ... One atomic mass unit (u) is defined as the 1/12 th of the mass of the isotope of carbon 𝐴 1 2 6 𝐴 2 1 2 2 6 C. Even though atoms are very tiny pieces of matter, they have mass. Their masses are so small, however, that chemists often use a unit other than grams to express them—the atomic mass unit. The atomic mass unit (abbreviated u, altho ugh amu is a lso used) is defined as 1/12 of the mass of a 12C atom: It is equal to 1.661 × 10 −24 g. Atomic mass unit (amu) is equal to one-twelfth the mass of an atom of carbon-12 (atomic mass of carbon taken as 12).