Describes the order in which electrons fill orbitals in atoms.
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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.
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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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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...
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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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Why do copper products change color, and what is the name of the process?
Probably, every person wants to know, why over time the copper turns green and becomes bloomed. This is easy to explain: that film is called patina.
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Colligative Properties
Physical properties of solutions that depend upon the number but not the kind of solute particles present.
Radical
An atom or group of atoms that contains one or more unpaired electrons (usually very reactive species)
Electron
A subatomic particle having a mass of 0.00054858 amu and a charge of 1-.
Molecular Orbital Theory
A theory of chemical bonding based upon the postulated existence of molecular orbitals.
Hydrogenation
The reaction in which hydrogen adds across a double or triple bond.
How is colored crystal made?
However, not everyone knows that in addition to the traditional transparent, there is still an unusually beautiful and spectacular colored crystal, which is obtained through the addition of various metal oxides into the glass. They give the crystal unusually noble shades of red, purple, blue, green and pink colors.
Chemical Hygiene Plan (CHP)
A written program developed and implemented by an employer designating proceedures, equipment, personal protective equipment, and work practices that are capable of protecting employees from the health hazards presented by hazardous chemicals usid in that particular workplace.
Carbonium ion
An orgainic ion carrying a positive charge on a carbon atom.
Allotropic Modifications (Allotropes)
Different forms of the same element in the same physical state.
Molar Solubility
Number of moles of a solute that dissolve to produce a litre of saturated solution.
