Respuesta :

Answer:

All atoms and ions of iron have 26 protons. Iron's atomic number is 26. Atoms don't gain or lose protons. The atomic mass of this ion is 56, which is the sum of its protons and neutrons.

Answer:

They both have 26 protons.

The one thing ions and iron atoms have in common is that they both have 26 protons. Hope it helps!