Question

is the number of protons plus the number of neutrons averaged. atomic charge atomic ions atomic number atomic mass

Explanation:

Atomic mass is the weighted - average mass of an atom, calculated as the number of protons plus the number of neutrons on average. Atomic charge is related to the gain or loss of electrons. Atomic ions are atoms with a net charge. Atomic number is the number of protons only.

Answer:

Atomic Mass