iÂ·onÂ·ic bond. A chemical bond formed between two ions with opposite charges. Ionic bonds form when one atom gives up one or more electrons to another atom. These bonds can form between a pair of atoms or between molecules and are the type of bond found in salts.
The answer is supernovae. In a supernova explosion, neutron capture reactions take place (this is not fusion), leading to the formation of heavy elements. This is the reason why it is said that most of the stuff that we see around us come from stars and supernovae (the heavy elements part).
Rust is fairly common but can be controlled and in some cases prevented. So how does rust form and what happens to the metal before it turns a reddish-brown, crumbly mess? How is Rust Formed? Rust is a type of iron oxide that forms as a result of a chemical reaction called oxidation in iron. Rust or corrosion is actually the natural process of metal returning to its original state of iron. Oxidation happens when metalreacts with exposure to certain things in the environment.