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A pattern of arrangement of particles in a crystal.

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Covalent Bond

Chemical bond formed by the sharing of one or more electron pairs between two atoms.

Polymorphous

Refers to substances that crystallize in more than one crystalline arrangement.

Chemical Bonds

The attractive forces that hold atoms together in elements or compounds.

Continuous Spectrum

Spectrum that contains all wave-lengths in a specified region of the electromagnetic spectrum.

Ozone

We breathe 24 hours a day, 7 days a week, consuming about 25 kg of air every day. It turns out that we practically predetermine our health by the air we breathe.

Meniscus

The shape assumed by the surface of a liquid in a cylindrical container.

Dipole Moment

The product of the distance separating opposite charges of equal magnitude of the charge, a measure of the polarity of a bond or molecule, a measured dipole moment refers to the dipole moment of an entire molecule.

Corrosion

Oxidation of metals in the presence of air and moisture.

Paramagnetism

Attraction toward a magnetic field, stronger than diamagnetism, but still weak compared to ferromagnetism.

Electrolytic Conduction

Conduction of electrical current by ions through a solution or pure liquid.