maybe rust
The charge on the iron ion in Fe2O3 is +3. Iron (Fe) can form different ions, but in this case, each Fe ion carries a +3 charge to balance the -2 charge of the oxygen ions in the compound.
two elements with ions with a 2 plus charge are Sulfurand Oxygen
Iron ions with 2+ are known as ferrous and with 3+ is called as ferric.
Fe 2+ is Ferrous Fe 3+ is Ferric
Ions are atoms that have either gained or lost electrons. Ions are normally formed by chemical processes. For example the rusting of Iron yields various types of Iron Oxides. Iron metal and oxygen gas both become ions. So when an atom becomes an ion through chemistry it always has a counter-ion (one positive and one negative). Some ions can vary in their charge depending on the situation, for example Iron often has a 2+ charge but can also easily have a 3+ charge. However, this is not formally considered "an ion of ion."
With a complete outer shell oxygen has a charge of 2-
The oxidation number of iron is +2 (Fe2+), and the oxidation number of oxygen is -2 (O2-). In iron(II) oxide (Fe2O3), which has two iron ions and three oxygen ions, the overall charge must balance to zero, so the oxidation number of iron is +3.
Iron ions are essential in oxygen transport as they are a key component of hemoglobin, a protein found in red blood cells. Hemoglobin binds to oxygen in the lungs and transports it to tissues throughout the body. Iron ions in hemoglobin help facilitate the binding and release of oxygen, ensuring efficient oxygen delivery to cells.
Fe2O3 is named iron oxide because it contains Fe+ ions.
In the blood of vertebrates and some invertebrates iron ions bound in a protein complex called hemoglobin transports oxygen. In the blood of many invertebrates copper ions bound in a protein complex called hemocyanin transports oxygen. However it is very likely that unbound sodium ions in the blood plasma outnumber the iron ions or copper ions in either case.
Iron(III) chloride is an ionic bond formed between iron and chloride ions. Iron(III) has a +3 charge, while chloride has a -1 charge, so three chloride ions are needed to balance the charge of one iron ion.
Fe 2+ is Ferrous Fe 3+ is Ferric