A heavy, colorless, chemically inactive, monatomic gaseous element used for filling radio, television, and luminescent tubes. Symbol: Xe, at. wt.: 131.30, at. no.: 54.
Latest Articles
-
Interesting facts about metals
Metals have been used by people since ancient times. All the time the process of obtaining them was improved, useful alloys of various metals appeared. Let’s look at interesting facts about metals.
-
What's In Your Beverage? How to Ensure Quality Control with CO2 Analytical Support
Calibration standards, performance audits, and the FDA's never-ending safety, labeling, and inspection requirements are just the tip of the iceberg when it comes to dealing with the increasingly stringent quality control standards of the beverage industry. As these quality standards become...
-
Varieties of garnet minerals
The most famous type of garnet stone is pyrope (flaming). This is the "oldest of garnets", with a dense red color, similar to the grain of an edible garnet. Pyrope has a variety called rhodolite - a stone of dense pink or pink-purple color, which sometimes has the alexandrite effect and is used in...
-
Use of diamonds
Diamond is a crystalline modification of pure carbon formed in the deep interior of the Earth, in the upper mantle at depths of more than 80-100 kilometers, at exceptionally high pressure and temperature. It is the most precious stone, the hardest and most wear-resistant mineral, the most...
-
Chemistry of the sky
Chemistry can teach us about the composition of celestial bodies and determine their age.
Most Popular
Calorimeter
A device used to measure the heat transfer between system and surroundings.
Inert s-pair Effect
Characteristic of the post-transition minerals, tendency of the outermost s electrons to remain nonionized or un shared in compounds.
Contact Process
Industrial process by which sulfur trioxide and sulfuric acid are produced from sulfur dioxide.
Buffer Solution
Solution that resists change in pH, contains either a weak acid and a soluble ionic salt of the acid or a weak base and a soluble ionic salt of the base.
Evaporation Rate
The rate at which a particular substance will vapourize (evaporate) when compared to the rate of a known substance such as ethyl ether. This term is especially useful for health and fire-hazard considerations.
Fractional Precipitation
Removal of some ions from solution by precipitation while leaving other ions with similar properties in solution.
Magnetic Quantum Number (mc)
Quantum mechanical solution to a wave equation that designates the particular orbital within a given set (s, p, d, f ) in which a electron resides.
Intermolecular Forces
Forces between individual particles (atoms, molecules, ions) of a substance.
Atmosphere
A unit of pressure, the pressure that will support a column of mercury 760 mm high at 0 °C.
Composition Stoichiometry
Descibes the quantitative (mass) relationships among elements in compounds.
