How Many Protons, Electrons, and Neutrons Does An Atom Of Iron Have?

An iron (Fe) atom has an atomic number of 26, so it has 26 protons and 26 electrons. The most common isotope of iron is Fe-56, which has an atomic mass of about 56, so the number of neutrons is 56 - 26 = 30. Total: 26 protons, 26 electrons, and 30 neutrons.