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 >
An atom is made of positive protons and neutral neutrons in the nucleus, and negative electrons surrounding the nucleus. An normal atom has the same number of protons and neutrons, so the protons and nuetrons cancel each other out, resulting in an overall charge of zero.