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A vertical column in the periodic table, also called a family.

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Photoelectric Effect

Emission of an electron from the surface of a metal caused by impinging electromagnetic radiation of certain minimum energy, current increases with increasing intensity of radiation.

 

Matter

Anything that has mass and occupies space.

Percent by Mass

100% times the actual yield divided by theoretical yield.

Dilution

Process of reducing the concentration of a solute in solution, usually simply by mixing with more solvent.

Nonbonding Orbital

A molecular orbital derived only from an atomic orbital of one atom, lends neither stability nor instability to a molecule or ion when populated with electrons.

Rate of Reaction

Change in the concentration of a reactant or product per unit time.

Anode

In a cathode ray tube, the positive electrode. Electrode at which oxidation occurs.

Intermolecular Forces

Forces between individual particles (atoms, molecules, ions) of a substance.

Colligative Properties

Physical properties of solutions that depend upon the number but not the kind of solute particles present.

PseudobinaryIonic Compounds

Compounds that contain more than two elements but are named like binary compounds.