Ratiation extraneous to an experiment. Usually the low-level natural radiation form cosmic rays and trace radioactive substances present in our environment.
- Protein Design: Automated protein discovery and synthesis
In this paper I describe (theoretically) the method(s) of automated protein discovery and synthesis.
- 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?
- 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...
- Chemical Safety
People use chemicals every day for a wide array of purposes, which can include work and house hold duties. Many of us fail to realize that we are actually handling potentially deadly chemicals when we simply clean the bathroom or wash the car. This brings to mind the reason why chemical safety is...
- What are Compound Microscopes?
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...
The sum of the numbers of protons and neutrons in an atom, an integer.
Elements with properties intermediate between metals and nonmetals: B, Al, Si, Ge, As, Sb, Te, Po, and At.
The attractive forces that hold atoms together in elements or compounds.
A substance that produces OH (aq) ions in aqueous solution. Strong soluable bases are soluble in water and are completely dissociated. Weak bases ionize only slightly.
Equation relating the rate of a reaction to the concentrations of the reactants and the specific rate of the constant.
The mass percent of each element in a compound.
A solid characterized by a regular, ordered arrangement of particles.
A colorless, crystalline compound, XeF4, prepared by heating a gaseous mixture of fluorine and xenon.
Law of Conservation of Matter and Energy
The total amount of matter and energy available in the universe is fixed.
Colloidal suspension of a solid dispersed in a liquid, a semirigid solid.
Hydrated sulfates of the general formula M+M3+(SO4)2.12H2).
Molecule formed by combination of two smaller (identical) molecules.
Collision between molecules resulting in a reaction, one in which the molecules collide with proper relative orientations and sufficient energy to react.
A device for accelerating charged particles along a spiral path.
Primary Voltaic Cells
Voltaic cells that cannot be recharged, no further chemical reaction is possible once the reactants are consumed.
A subatomic particle having a mass of 0.00054858 amu and a charge of 1-.
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.
Common Ion Effect
Suppression of ionization of a weak electrolyte by the presence in the same solution of a strong electrolyte containing one of the same ions as the weak electrolyte.
A sustance that coats the particles of the dispersed phase and prevents coagulation of colloidal particles, an emulsifier.
A soap-like emulsifer that contains a sulfate, SO3 or a phosphate group instead of a carboxylate group.