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The energy change accompanying the hydration of a mole of gase and ions.

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Electronic Transition

The transfer of an electron from one energy level to another.

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.

Ionization Energy

The minimum amount of energy required to remove the most loosely held electron of an isolated gaseous atom or ion.

Curie (Ci)

The basic unit used to describe the intensity of radioactivity in a sample of material. One curie equals 37 billion disintegrations per second or approximately the amount of radioactivty given off by 1 gram of radium.

Heteronuclear

Consisting of different elements.

How to make crystal glass

From history we know that the idea of creating crystal belongs to the British: they were the first to add lead oxides to the charge material, and as a result got glass with unusual “voice”, transparency and sparkling faces. Classical crystal contains 24% of lead oxide, but there are products with a higher content of up to 30%.

Fluids

Substances that flow freely, gases and liquids.

Faraday

One faraday of electricity corresponds to the charge on 6.022 x 1023 electrons, or 96,487.301 coulombs.

Fuel Cells

Voltaic cells in which the reactants (usually gases) are supplied continuously.
A voltaic cell that converts the chemical energy of a fuel and an oxidizing agent directly into electriacl energy on a continuous basis.

Hund's Rule

All orbitals of a given sublevel must be occupied by single electrons before pairing begins.