Chemistry Glossary Terms Starting with the Letter X

Chemistry Glossary and Dictionary

Xenon is a colorless gas, but it emits a blue glow when excited by an electrical discharge.
X is for xenon. Xenon normally is a colorless gas, but it emits a blue glow when excited by an electrical discharge, as seen here. pslawinski, wikipedia.org

This chemistry glossary offers definitions for terms which are commonly used in chemistry and chemical engineering. These are chemistry words that start with the letter X.

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xanthophyll - Xanthophyll is a class of carotenoids that are yellow pigments. Examples: The yellow in fall leaves is due to xanthophyll molecules.

xenobiotic - Xenobiotic is any chemical that would not normally be found in a living organism or be expected to be produced by it.

 Examples: organs that are transplanted across species, genes from different organisms, dioxin in humans, antibiotics in humans since we do not produce them ourselves.

xenon - Xenon is an element with an atomic number of 54 and atomic weight of 131.29. It is an odorless inert gas that is used to fill cathode ray tubes.

X group  'X' is used to denote a halogen in the structural formula of a molecule (usually organic).

x-rays - X-rays are light rays with a wavelength from 0.01 to 1.0 nanometers. Also Known As: X radiation

x-ray crystallography

x-ray diffraction pattern - X-Ray Diffraction Pattern is an interference pattern created by x-rays as they pass through a material, such as a crystal.

x-ray spectrum (x-ray spectra)

x-ray tube - An X-Ray tube is a type of cathode ray tube that focuses electrons onto a metal target, thus causing the metal to emit x-rays.

x unit - An x unit is a non-SI unit of length equal to 100.21 x 10-15 meters.

The unit is used in x-ray crystallography.

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