What does the atomic mass of an atom tell us?
How much the atom weighs
The number of electrons in the atom
Which row the element is in on the periodic table
The number of energy levels in the atom

Respuesta :

well it would tell us the number of neutrons and protons in the nucleus so i would assume the number of energy levels.

Answer:

How much the atom weighs.

Explanation:

I just took the exam and got it correct.