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Arrangement of ligands in order of increasing ligand field strength.

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Molecular Formula

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

Metal

An element below and to the left of the stepwise division (metalloids) in the upper right corner of the periodic table, about 80% of the known elements are metals.

Coordination Compound or Complex

A compound containing coordinate covalent bonds.

Handmade crystal glass as a work of art

In order for the colored crystal to open in all its beauty and sparkle with every face natural light is required. Handmade crystal glass has specific tactile and aesthetic properties - it is pleasant to touch, it seems to radiate heat. To appreciate the quality and beauty of such things, of course, it is not enough to look at the picture.

Radical

An atom or group of atoms that contains one or more unpaired electrons (usually very reactive species)

Critical Point

The combination of critical temperature and critical pressure of a substance.

Band Theory of Metals

Theory that accounts for the bonding and properties of metallic solids.

Bonding Orbital

A molecular orbit lower in energy than any of the atomic orbitals from which it is derived, lends stability to a molecule or ion when populated with electron.

Differential Thermal Analysis (DTA)

A technique for observing the temperature, direction, and magnitude of thermally induced transitions in a material by heating/cooling a sample and comparing its temperature with that of an inert reference material under similar conditions.

Amorphous Solid

A noncrystalline solid with no well-defined ordered structure.