Electron emitted from the nucleus when a neuton decays to a proton and an electron.
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Diamonds Are Forever
Diamonds are still a girl's best friend, right? We love the shiny gems. They are the most popular rocks sold today. But what exactly are they, anyway? Where do they come from? What else are they used for?
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Chemistry of the sky
Chemistry can teach us about the composition of celestial bodies and determine their age.
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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...
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Features of the Scanning Tunneling Microscope
The scanning tunneling microscope (STM) invented by Heinrich Rohrer and Gerd Binnig in the 1980s still manages to do a great job today and competes with more advanced microscope types. The scanning tunneling microscope is used for studying the surface atoms that are found on various materials. The...
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Gas of rotten eggs
If you happen to break a rotten egg, then you know the smell of hydrogen sulfide, because the stench of the spoiled egg depends on of its presence in rotting protein substances.
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Atomic Number
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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%.
Charle's Law
At constant pressure the volume occupied by a definite mass of gas is directly proportional to its absolute temperature.
Solution
Homogeneous mixture of two or more substances.
Endothermicity
The absorption of heat by a system as the process occurs.
Reversible Reaction
Reactions that do not go to completion and occur in both the forward and reverse direction.
Double Bond
Covalent bond resulting from the sharing of four electrons (two pairs) between two atoms.
Heavy Water
Water containing deuterium, a heavy isotope of hydrogen.
Ionic Compounds
Compounds containing predominantly ionic bonding.
Colloid
A heterogeneous mixture in which solute-like particles do not settle out.
