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Inhibitory Catalyst

An inhibitor, a catalyst that decreases the rate of reaction.

Doublet

Two peaks or bands of about equal intensity appearing close together on a spectrogram.

Polyene

A compound that contains more than one double bond per molecule.

Coulomb

Unit of electrical charge.

Alpha Particles

A helium nucleus.

Nuclear Binding Energy

Energy equivalent of the mass deficiency, energy released in the formation of an atom from the subatomic particles.

 

Sigma Bonds

Bonds resulting from the head-on overlap of atomic orbitals, in which the region of electron sharing is along and (cylindrically) symmetrical to the imaginary line connecting the bonded atoms.

Ionization Constant

Equilibrium constant for the ionization of a weak electrolyte.

Bond Energy

The amount of energy necessary to break one mole of bonds of a given kind (in gas phase).The amount of energy necessary to break one mole of bonds in a substance, dissociating the sustance in the gaseous state into atoms of its elements in the gaseous state.

xanthate

A salt or ester of xanthic acid. Many xanthates have a yellow color. Xanthates are used as flotation agents in mineral processing.