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).
Iron Metabolism. Iron is critical to a number of synthetic and enzymatic processes. Most of the body iron is part of the hemoglobin molecule where iron serves a key role in oxygen transport.Iron is recycled and thus conserved by the body. Daily intake (1 mg) s balanced against small daily losses (1 mg).ron is critical to a number of synthetic and enzymatic processes. Most of the body iron is part of the hemoglobin molecule where iron serves a key role in oxygen transport.