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Nuclide that undergoes nuclear decay.

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Denatured

A commercial term used to describe ethanol that has been rendered unfit for human consumption because of the addition of harmful ingredients to make it sales tax-expempt.

 

Fast Neutron

A neutron ejected at high kinetic energy in a nuclear reaction.

Ioniztion

The breaking up of a compound into separate ions.

Chemical Change

A change in which one or more new substances are formed.

Excited State

Any state other than the ground state of an atom or molecule.

Specific Heat

The amount of heat required to raise the temperature of one gram of substance one degree Celsius.

yttria

Y2O3: A white, water-insoluble powder, Y2O3, used chiefly in incandescent gas and acetylene mantles.

Hydration

Reaction of a substance with water.

Moderator

A substance such as hydrogen, deuterium, oxygen or paraffin capable of slowing fast nuetrons upon collision.

Activity of a component of ideal mixture

A dimensionless quantity whose magnitude is: equal to molar concentration in an ideal solution, equal to partial pressure in an ideal gas mixture, and defined as 1 for pure solids or liquids.