Which of the following does the atomic number of an atom represent? (1 point)

O the number of protons in the atom
O the number of particles in the nucleus of the atom
the number of neutrons in the atom
the number of particles outside the nucleus of the atom

The atomic number of an atom represents the number of protons in the atom.

The atomic number of an atom represents the number of protons in the atom.

The atomic number of an atom represents the number of protons in the atom. To identify the atomic number, you can refer to the periodic table. Each element on the periodic table is assigned a unique atomic number. For example, hydrogen has an atomic number of 1, which means it has one proton in its nucleus. Oxygen, on the other hand, has an atomic number of 8, indicating it has 8 protons.