One twelfth of a mass of an atom of the carbon-12 isotope, a unit used for stating atomic and formula weights, also called dalton.
- 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...
- 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...
- 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?
High energy particles or rays emitted during the nuclear decay processes.
Colloidal suspension of liquid in gas.
High energy electromagnetic radiation. A highly penetrating type of nuclear radiation similar to x-ray radiation, except that it comes from within the nucleus of an atom and has a higher energy. Energywise, very similar to cosmic ray except that cosmic rays originate from outer space.
A heavy, colorless, chemically inactive, monatomic gaseous element used for filling radio, television, and luminescent tubes. Symbol: Xe, at. wt.: 131.30, at. no.: 54.
Potential difference between two electrodes, a measure of the chemical potential for a redox reaction to occur.
Refers to the separation of charge between two covalently bonded atoms.
Refers to crystals having the same atomic arrangement.
Weak repulsion by a magnetic field.
A negative ion, an atom or goup of atoms that has gained one or more electrons.
Isomers involving exchanges of ligands between complex cation and complex anion of the same compound.
All orbitals of a given sublevel must be occupied by single electrons before pairing begins.
The transfer of an electron from one energy level to another.
The quantitative application of Faraday's Law to the analysis of materials. The current and time are the usual variables measured.
The absolute entropy of a substance in its standard state at 298 K.
The number (6.022x10^23) of atoms, molecules or particles found in exactly 1 mole of substance.
Unsaturated hydrocarbons that contain one or more carbon-carbon triple bonds.
The liquid and solid phases, phases in which particles interact strongly.
Particles comprising the nucleus, protons and neutrons.
A substance that produces H+(aq) ions in aqueous solution. Strong acids ionize completely or almost completely in dilute aqueous solution. Weak acids ionize only slightly. Chemicals or substances having the property of an acid are said to be acidic.
Cathode Ray Tube
Closed glass tube containing a gas under low pressure, with electrodes near the ends and a luminescent screen at the end near the positive electrode, produces cathode rays when high voltage is applied.