The atomic number of an atom represents the number of protons in the atom. Therefore, the correct answer is:
the number of protons in the atom.
the number of particles outside the nucleus of the atom
the number of protons in the atom
the number of particles in the nucleus of the atom
the number of neutrons in the atom
1 answer
The atomic number of an atom represents the number of protons in the atom. Therefore, the correct answer is:
the number of protons in the atom.