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Chem. Vocab 351-375

Pressure, equilibrium vapor The pressure exerted by a vapor in equilibrium with its liquid.
Presource, standard The pressure exerted by a column of mercury exactly 760 mmHg hight at 0 degrees.
Principal quantum number the quantum number designating energy level and electron cloud size.
Protolysis Proton transfer electrons
Proton A positively charged particle found in the nucleus of an atom. It has 1836/1837 of the mass of the simplest type of hydrogen atom.
Quantum A discrete "packet" of energy.
Quantum numbers The numbers that describe the distance from the nucleus, the shape and the position with respect to the 3 axes in space of an orbital, as well as the direction of spin of the electron(s) in each orbital.
Radioactive Having the property of radioactivity.
Radioactive decay A radioactive change in which a nucleus emits a particle and rays, forming a slightly lighter, more stable nucleus.
Radioactivity The spontaneous break down of an unstable atomic nucleus with the emission of particles and rays.
Reactant An element or compound enterlay into a chemical reaction.
Reducing agent The atom or ion that supplies electrons during an oxidation-reduction reaction.
Reduction Any chemical reaction that involves the gain of one or more electrons by an atom or ion.
Reversible reaction A reaction in which the products may react to produce the original reactants.
Salt A compound composed of the positive ions of an aqueous base and the megative ions of an aqueous acid.
Saturated Pertaining to a solution in which the concentration of solute is the maximum possible under existing conditions.
Semiconductor A substance with an electric conductivity between that of a metal and an insulator.
Shell A region about the nucleus of an atom in which electrons move.
Significant digits The reliable digits in a measurement based on the accuracy of the measuring instrument.
Single displacement A reaction im which one element replaces another in a compound.
Solid The phase of matter characterized by definite shape.
Solubility The amount of a solute dissolved in a given amount of solvent at equilibrium, under specific conditions.
Solute The dissolved substance in a solution.
Solution A homogeneous mixture of two or more substances, the composition of which may be varied within definite limits.
Solvation The clustering of solvent particles about the particles of solute.
Created by: nissaAPworld