why is atomic mass measured in atomic mass units (amu)?\nelectrons and neutrons make up nearly all the mass…

why is atomic mass measured in atomic mass units (amu)?\nelectrons and neutrons make up nearly all the mass of an atom, and each is worth 1 amu. each atom of an element has a mass measured in amu; thus, their weighted average, or atomic mass, is measured in amu.\nelectrons make up nearly all the mass of an atom, and each is worth 1 amu. thus, their weighted average, or atomic mass, is measured in amu.\nprotons and neutrons make up nearly all the mass of an atom, and each is worth 1 amu. each atom of an element has a mass measured in amu; thus, its weighted average, or atomic mass, is measured in amu.\nprotons and electrons make up nearly all the mass of an atom, and each is worth 1 amu. each atom of an element has a mass measured in amu; thus, their weighted average, or atomic mass, is measured in amu.

why is atomic mass measured in atomic mass units (amu)?\nelectrons and neutrons make up nearly all the mass of an atom, and each is worth 1 amu. each atom of an element has a mass measured in amu; thus, their weighted average, or atomic mass, is measured in amu.\nelectrons make up nearly all the mass of an atom, and each is worth 1 amu. thus, their weighted average, or atomic mass, is measured in amu.\nprotons and neutrons make up nearly all the mass of an atom, and each is worth 1 amu. each atom of an element has a mass measured in amu; thus, its weighted average, or atomic mass, is measured in amu.\nprotons and electrons make up nearly all the mass of an atom, and each is worth 1 amu. each atom of an element has a mass measured in amu; thus, their weighted average, or atomic mass, is measured in amu.

Answer

Brief Explanations:

Protons and neutrons contribute most of an atom's mass, with each approximately worth 1 amu. Atomic mass is the weighted - average of the masses of an element's atoms, so it is measured in amu.

Answer:

Protons and neutrons make up nearly all the mass of an atom, and each is worth 1 amu. Each atom of an element has a mass measured in amu; thus, its weighted average, or atomic mass, is measured in amu.