the act of competing; rivalry for supremacy, a prize, etc.: The competition between the two teams was bitter. a contest for some prize, honor, or advantage: Both girls entered the competition. the rivalry offered by a competitor: The small merchant gets powerful competition from the chain stores.
A: Copper is an element, because it is composed of only one type of atom. A compound consists of two or more elements that are chemically bound together, and ... Full Answer >
In The Nucleus. The nucleus of an atom is made up of protons and neutrons; protons have a positive electric charge whereas neutrons have none. Protons and neutrons have similar mass, with each having about 2,000 times the mass of an electron.