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 is a trace mineral. Almost two-thirds of the iron in our bodies is found in hemoglobin, the oxygen-carrying protein in our blood. Iron is a cofactor for many of the enzymes involved in the metabolism of carbohydrates, fats, and protein.opper is a trace mineral that functions as a cofactor in the metabolic pathways that produce energy, in the production of collagen and elastin, and as part of the superoxide dismutase antioxidant enzyme system.