Star InactiveStar InactiveStar InactiveStar InactiveStar Inactive
 

An atom or a group of atoms that carries an electric charge.

Latest Articles

  • 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...

  • 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.

  • 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...

  • Protein Design: Automated protein discovery and synthesis

    In this paper I describe (theoretically) the method(s) of automated protein discovery and synthesis.



Most Popular

Carbonium ion

An orgainic ion carrying a positive charge on a carbon atom.

Oxidation-reduction Reactions

Reactions in which oxidation and reduction occur, also called redox reactions.

Hybridization

Mixing a set of atomic orbitals to form a new set of atomic orbitals with the same total electron capacity and with properties and energies intermediate between those of the original unhybridized orbitals.

Electron

A subatomic particle having a mass of 0.00054858 amu and a charge of 1-.

Heat

A form of energy that flows between two samples of matter because of their differences in temperature.

Organic Chemistry

The chemistry of substances that contain carbon-hydrogen bonds.

Alcohol

Hydrocarbon derivative containing an --OH group attached to a carbon atom not in an aromatic ring. Alcohols are a class of organic compounds containing the hydroxyl group, OH, attached to a carbon atom.

Alpha (a) Particle

Helium ion with 2+ charge, an assembly of two protons and two neutrons.

Disproportionation Reactions

Redox reactions in which the oxidizing agent and the reducing agent are the same species.

Group

A vertical column in the periodic table, also called a family.