Table of Contents
- 1 Why Fe2+ and Fe3+ ions are both stable?
- 2 How do we differentiate between Fe2+ and Fe3+ when naming compounds?
- 3 Why does iron have two oxidation states?
- 4 Why is Fe more stable than Fe?
- 5 What is the difference between Fe2+ and Fe3+? Which one is reduced and which one is oxidized?
- 6 How can iron become stable?
Why Fe2+ and Fe3+ ions are both stable?
The reason why fe3+ is more stable than fe2+ is because, in fe2+ there are 6 electrons in d orbital as compared to 5 electrons in the case of fe3+. Since 10 electrons make fully filled d orbital (most stable) , the 5 electrons in fe3+ makes the d orbital half filled and therefore is more stable compared to fe2+.
Why Fe3 positive is more stable than Fe2 positive?
Fe3+ ion is more stable due to its half-filled 3d5 electron configuration. As half filled and completely filled shells are more stable Fe3+ ion is more stable. While Fe2+ is not stable.
How do we differentiate between Fe2+ and Fe3+ when naming compounds?
The only thing that’s different about Fe2+ and Fe3+ is the number of electrons, which in turn results in different properties of these species. Fe2+, aka ferrous, is pale green and turns violet when added to water. Fe3+, aka ferric, is yellow-brown in solution.
What is the Iron II ion how does it differ from the Iron III ion?
Thus, Fe2+ is called the iron(II) ion, while Fe3+ is called the iron(III) ion. This system is used only for elements that form more than one common positive ion. We do not call the Na+ ion the sodium(I) ion because (I) is unnecessary….Naming Ions.
| Ion | Name |
|---|---|
| N3− | nitride ion |
Why does iron have two oxidation states?
So why can iron form both a +2 or a +3 oxidation state? Both will give better stability then the ground state electron configuration for iron. Ions form because they give better stability than ground state atoms, but not necessarily perfect stability. The two ions of iron both give better stability to the particle.
Which one is more stable ferrous or ferric salts and why?
As half-filled 3d5 configuration is more stable, therefore, ferric salts are more stable then ferrous salts.
Why is Fe more stable than Fe?
Among Fe3+ and Fe2+ , Fe3+ is more stable due to half filled d-orbital. Half filled and completely filled d-orbitals are more stable than partially filled d-orbitals. So Fe3+ is more stable than Fe2+.
What is the most stable oxidation state of Fe?
The most stable oxidation states of iron are Fe(III) and Fe(II). Fe(III) ions form yellow or brown ( rusty!) or red compounds with various agents.
What is the difference between Fe2+ and Fe3+? Which one is reduced and which one is oxidized?
Reduction is a gain of electrons. The pale green Fe2+ is oxidised to orange Fe3+ because it loses an electron. This is an oxidation reaction because there is a loss of electrons and an increase in oxidation number.
How are Fe2+ and Fe3+ difference?
The difference between Fe2+ and Fe3+ is the Fe2+ has a pale green colour and turns violet when water is added to it. While Fe3+ forms blood-red when it reacts with thiocyanate ions. Fe2+ has paramagnetic properties whereas Fe3+ has diamagnetic properties.
How can iron become stable?
Iron, which forms either the Fe 2+ or Fe 3+ ions, loses electrons as shown below. According to the Aufbau process, the electrons fill the 4 s sublevel before beginning to fill the 3 d sublevel. A half-filled dsublevel ( d 5 ) is particularly stable, which is the result of an iron atom losing a third electron.
What is the difference between Fe2+ and Fe3+?