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Adding up all of the _______ of all of the individual atoms within one molecule of a compound will determine the molecular mass of the compound.A) atomic massesB) electronsC) atomic numbersD) protons

Respuesta :

1) Subatomic particles. There are three main subatomic particles. These subatomic particles are the protons, the neutrons, and the electrons.

The protons and the neutrons are a lot heavier than the electrons. So, they represent most of the weight of an atom.

The protons and the neutrons added together are what we call the mass number.

The correct answer is option A, atomic masses.