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The Fe(3+) cation has 26 protons, 30 neutrons (for the isotope Fe-56) and 23 electrons.

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Q: How many protons neutrons and electrons in Fe3?
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How many neutrons would be present in the nucleus of an atom of iron-56?

I am understanding you to mean an iron-57 ion with a charge of 3+.The atomic number of Fe is 26, which means that all Fe atoms or ions have 26 protons in their nuclei.In a neutral Fe atom, the number of electrons would be the same as the number of protons, which is 26. The charge on the Fe ion is 3+, which means the Fe atom has given up 3 electrons. So the number of electrons in an Fe3+ ion is 26-3, which is 23.The mass number of iron-57 = 57. The mass number is the sum of protons and neutrons in the atomic nuclei of iron-57 atoms. We know the number of protons is 26. The number of neutrons = mass number - the number of protons, which is 57-26 = 31 neutrons.To summarize:The number of protons in all Fe atoms is 26.The number of electrons in an any Fe3+ ion is 23.The number of neutrons in an iron-57 atom is 31.


How many 3d electrons does an Fe3 plus ion have?

The answer is 3. Fe -> Fe3+ + 3e


How many unpaired electrons in (d) subshell in ferric Fe3?

5 unpaired electrons There are 5 unpaired electrons in the Fe3+ ion. The reason for this is that Iron has the electron configuration Ar3d5.


What ion has 24 protons and 21 electrons?

The charge of the ion is 2+.This would be represented as Fe2+.


How many core electrons does Fe have?

It varies. The number of electrons in an ion is equal to the number of protons minus the charge. Iron has 26 protons and will commonly form two ions: Fe2+ and Fe3+. So the number of electrons in these ions is 24 and 23 respectively.


What is the number of protons in iron3?

26. Iron(II) has the same number of protons as iron, iron(II) , 26. In iron(III) there are only 23 electrons hence the iron atom is charged, Fe3+


How many electrons has an atom of iron lost to become an Fe3 plus ion?

it should lose 3 electrons


What transition metal has 30 electrons?

Iron (Fe), 26 electrons in neutral atom, 23 in Fe3+. Rust, Fe203 has Fe3+ ions.


What species has the greatest number of electrons I- or Cu2 plus or Fe3 plus or Au or Hg?

Hg will have 80 electrons.


Does a chloride ion have more protons than electrons?

Yes. The charge of a cation tells how many more protons than electrons it has. For example Fe3+ has three more protons than electrons. However these protons were not gained, since an element always has the same number of protons no matter what its charge is. So in order for an element to have more protons than electrons it has to lose the electrons.


Is iron a cations or an ations?

Iron will form a cation. Depending on how many electrons it lose, it could be Fe2+ or Fe3+. There is more than one transition state.


How does a iron atom become a ferric ion?

When iron loses three electrons it becomes ferric (Fe3+) ion