answersLogoWhite

0

Fe3+ is smaller. Its ionic radius is 63 pm, while Fe2+ has an ionic radius of 77 pm. (For comparison, the Fe atom has a radius of 140 pm.) This is because the outermost electron in the 2+ ion is pulled off to form the 3+ ion. This outermost electron was the most weakly held. The remaining electrons are closer to the nucleus.

User Avatar

Wiki User

16y ago

What else can I help you with?

Related Questions

Is an oxidation half-reaction A. Fe2 plus Fe3 plus plus e- B. Fe3 plus plus e- Fe2 plus C. Fe(s) Fe(l) D. Fe plus 2e- Fe2 plus?

A. Fe^2+ ==> Fe^3+ + e- is an oxidation reactionB. Fe^3+ +e- ==> Fe^2+ is a reduction reactionC. Fe(s) ==> Fe(l) is neither an oxidation nor a reduction reaction. It is a phase change.D. Fe + 2e- ==> Fe^2+ is not a possible reaction.


What elements are in windows?

fe2+ or fe3+


What is the name of ionic compound fe2 plus?

The name of the ionic compound Fe2+ is iron(II) or ferrous ion.


How can potassium thiocyanate be used to confirm that fe2 plus ions have been oxidized to fe3 plus?

Potassium thiocyanate can be used to confirm the oxidation of Fe2+ ions to Fe3+ ions by forming a blood-red complex with Fe3+, known as iron(III) thiocyanate. Upon the addition of potassium thiocyanate, if a blood-red color formation is observed, it indicates the presence of Fe3+ ions, confirming the oxidation of Fe2+ ions.


What elements are in stained windows?

fe2+ or fe3+


What is natural state of iron?

Fe2+ and Fe3+


If zinc and iron are used to make a cell what half-reactions will occur for zn2 plus aq plus 2e- zn s e0 equals -0.76 v and for fe3 plus aq plus e- fe2 plus aq e0 equals 0.77 v?

Zn(s) → Zn2+(aq) + 2e- and Fe3+(aq) + e- → Fe2+(aq)


What are the two ionic charges common for?

Fe2+ and Fe3+.


What is the ion for iron?

Iron has 2 oxidation states: Fe2+ and Fe3+ .


What is the name of the compound Fe2?

ferrous ions and Fe3+ is ferric ion


What is the Formula for Ferric ion?

The formula for ferric ion is Fe3+. It is the ion form of iron when it has lost three electrons.


What is the name of the ionic compound Fe2?

ferrous ions and Fe3+ is ferric ion