A device used to measure the heat transfer between system and surroundings.
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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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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...
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Graham's Law
The rates of effusion of gases are inversely proportional to the square roots of their molecular weights or densities.
Moderator
A substance such as hydrogen, deuterium, oxygen or paraffin capable of slowing fast nuetrons upon collision.
Atomic Mass Unit (amu)
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.
London Forces
Very weak and very short-range attractive forces between short-lived temporary (induced) dipoles, also called dispersion Forces.
Radioactivity
The spontaneous disintegration of atomic nuclei.
Allotropes
Different forms of the same element in the same physical state.
Ioniztion
The breaking up of a compound into separate ions.
Amorphous Solid
A noncrystalline solid with no well-defined ordered structure.
Positron
A Nuclear particle with the mass of an electron but opposite charge.
Crystal Field Stabilization Energy
A measure of the net energy of stabilization gained by a metal ion's nonbonding d electrons as a result of complex formation.
