The energy equivalent (E = mc^2) of the mass deficiency of an atom. where: E = is the energy in joules, m is the mass in kilograms, and c is the speed of light in m/s^2
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Most of the microscopes used today are compound. A compound microscope features two or more lenses. A hollow cylinder called the tube connects the two lenses. The top lens, the one people look through, is called the eyepiece. The bottom lens is known as the objective lens. Below the two lenses is...
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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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In this paper I describe (theoretically) the method(s) of automated protein discovery and synthesis.
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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?
Conjugated Double Bonds
Double bonds that are separated from each other by one single bond -C=C-C=C-.
Pauli Exclusion Principle
No two electrons in the same atom may have identical sets of four quantum numbers.
A device used to measure the densities of liquids and solutions.
Discovered : by Henry Cavendish in 1766.
Isolated in London, UK.
Origin : The name is derived from the Greek ‘hydro genes’, meaning water forming.
Description :A colourless, odourless gas that burns and can form an explosive mixture with air. It is currently manufactured from methane gas, but is also produced by the electrolysis of water and aqueous salts. The gas is used to make such key materials as ammonia, cyclohexane and methanol, which are intermediates in the production of fertilisers, plastics and pharmaceuticals. Some see hydrogen gas as the clean fuel of the future - generated from water and returning to water when it is oxidised. Hydrogen-powered fuel cells are increasingly being seen as pollution-free sources of energy.
Substances that flow freely, gases and liquids.
The reaction of a substance with water or its ions.
The dispersing medium of a solution.
Solid consisting of two co-crystallized salts.
Isomers in which a particular ligand bonds to a metal ion through different donor atoms.
The very small, very dense, positively charged center of an atom containing protons and neutrons, as well as other subatomic particles.
Positively charged or electron-deficient.
A U-shaped tube containing electrolyte, which connects two half-cells of a voltaic cell.
A partially filled band or a band of vacant energy levels just higher in energy than a filled band, a band within which, or into which, electrons must be promoted to allow electrical conduction to occur in a solid.
Isomers involving exchanges of ligands between complex cation and complex anion of the same compound.
Of electrons, refers to bonding electrons that are distributed among more than two atoms that are bonded together, occurs in species that exhibit resonance.
The formation of a set of molecular orbitals that extend over more than two atoms, important in species that valence bond theory describes in terms of resonance.
A binary compound in which H is bonded to one or more of the more electronegative nonmetals.
To estimate the value of a result outside the range of a series of known values. Technique used in standard additions calibration procedure.
A nuclear reactor that produces more fissionable nuclear fuel than it consumes.
An organic ion carrying a negative charge on a carbon atom.
Heat of Condensation
The amount of heat that must be removed from one gram of a vapor at it's condensation point to condense the vapour with no change in temperature.