Related Words

Atomic Number: The number of protons in the nucleus of an atom.

Atomic Number (Z): The number of protons in an atomic nucleus. The atomic number and the element symbol are two alternate ways to label an element. In nuclide symbols, the atomic number is a leading subscript; . . . View Full Definition

Diatomic Molecule: A molecule that contains only two atoms. All of the noninert gases occur as diatomic molecules; e. G. Hydrogen, oxygen, nitrogen, fluorine, and chlorine are H2, O2, N2, F2, and Cl2, respectively.

Edge Numbers: Reference numbers printed by light at regular intervals along the edge of 35mm and roll films during manufacture.

Course Numbers: All courses are identified by numbers usually containing 3 digits, for example Freshman English might be 101. The first digit indicates the class year in which the subject is usually taken. . . . View Full Definition

Coordination Number: The number of bonds formed by the central atom in a metal-ligand complex.

Electronic Serial Number (ESN): The unique identification number embedded in a wireless phone by the manufacturer. Each time a call is placed, the ESN is automatically transmitted to the base station so the wireless carrie . . . View Full Definition

CUSIP Number: The theory that a stock with many short positions taken in it will rise, because these positions must be covered by the stock.

For A Number: Financial Times (F-T)-Actuaries 100 index: 'Dow average' of London.

Law Of Large Numbers: The mean of a random sample approaches the mean (expected value) of the population as sample size increases.