How many neutrons are in an atom of iron -56,_(26)^56F e? 82 C 3d 26 c 56

To determine the number of neutrons in an atom of iron-56, we need to look at the atomic number and the mass number.<br /><br />The atomic number is the number of protons in the nucleus of the atom. In this case, the atomic number is 26.<br /><br />The mass number is the total number of protons and neutrons in the nucleus of the atom. In this case, the mass number is 56.<br /><br />To find the number of neutrons, we subtract the atomic number from the mass number:<br /><br />Number of neutrons = Mass number - Atomic number<br />Number of neutrons = 56 - 26<br />Number of neutrons = 30<br /><br />Therefore, an atom of iron-56 has 30 neutrons.