It is formed when the Earth was being formed. As the Earth got bigger the iron seeped into the crust of the earth and kept going.
there are four allotrpic forms of iron...
Iron forms a cation.
Iron oxide (rust) forms as the iron is oxidized.
The word equation for the reaction when iron forms hematite in the Earth is: Iron + Oxygen → Hematite.
Iron, when it oxidizes.
Iron plus oxygen forms iron oxide, or plain old rust.
iron forms rust
commercial forms of irom
The ability to react with oxygen, which forms rust is a chemical property of iron.
The iron nail would rust the fastest, as its surface area is relatively larger compared to the other forms of iron listed. This allows more exposure to oxygen and moisture, which are essential for the rusting process to occur.
Iron
Iron and nickel.