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Weak repulsion by a magnetic field.

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Nucleons

Particles comprising the nucleus, protons and neutrons.

Alkenes (Olefins)

Unsaturated hydrocarbons that contain one or more carbon-carbon double bonds.

London Forces

Very weak and very short-range attractive forces between short-lived temporary (induced) dipoles, also called dispersion Forces.

Distillate

The material in a distillation apparatus that is collected in the receiver.

 

Molecular Orbital

An orbit resulting from overlap and mixing of atomic orbitals on different atoms. An MO belongs to the molecule as a whole.

Emulsion

Colloidal suspension of a liquid in a liquid.

Reaction Ratio

The relative amounts of reactants and products involved in a reaction, maybe the ratio of moles. millimoles, or masses.

 

Spectator Ions

Ions in a solution that do not participate in a chemical reaction.

Alkyl Group

A group of atoms derived from an alkane by the removal of one hydrogen atom.

Percent Composition

The mass percent of each element in a compound.

Hybridization

Mixing a set of atomic orbitals to form a new set of atomic orbitals with the same total electron capacity and with properties and energies intermediate between those of the original unhybridized orbitals.

Square Planar Complex

Complex in which the metal is in the center of a square plane, with ligand donor atoms at each of the four corners.

Acid

A substance that produces H+(aq) ions in aqueous solution. Strong acids ionize completely or almost completely in dilute aqueous solution. Weak acids ionize only slightly. Chemicals or substances having the property of an acid are said to be acidic.

Inner Orbital Complex

Valence bond designation for a complex in which the metal ion utilizes d orbitals for one shell inside the outermost occupied shell in its hybridization.

Molecular Formula

Formula that indicates the actual number of atoms present in a molecule of a molecular substance.

Donor Atom

A ligand atom whose electrons are shared with a Lewis acid.

Phosphorus Oxychloride

Colorless to slightly yellow fuming liquid.

Mol. Wt.: 153.39
M.P.: 20C
B.P.: 105.1C
Density: 1.685 @ 15.5C
Vapor Pressure: 40 mm @ 27.3C
Vapor Density: 5.3
Used as the phosphorus source for phosphorus diffusion.

Compressed Gas

A gas or mixture of gases having, in a container an absolute pressure exceeding 40 psi at 21.1°C (70°F)

Accuracy

How closely a measured value agrees with the correct value.

Ground State

The lowest energy state or most stable state of an atom, molecule or ion.