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Band containing nonradioactive nuclides in a plot of number of neutrons versus atomic number.

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Phosphorus Oxychloride

Colorless to slightly yellow fuming liquid.

Mol. Wt.: 153.39
M.P.: 20C
B.P.: 105.1C
Density: 1.685 @ 15.5C
Vapor Pressure: 40 mm @ 27.3C
Vapor Density: 5.3
Used as the phosphorus source for phosphorus diffusion.

Polydentate

Refers to ligands with more than one donor atom.

Conjugated Double Bonds

Double bonds that are separated from each other by one single bond -C=C-C=C-.

Matter

Anything that has mass and occupies space.

Heat of Condensation

The amount of heat that must be removed from one gram of a vapor at it's condensation point to condense the vapour with no change in temperature.

Alpha (a) Particle

Helium ion with 2+ charge, an assembly of two protons and two neutrons.

Chain Termination Step

The combination of two radicals, which removes the reactive species that propagate the change reaction.

Equilibrium Constant

A quantity that characterizes the position of equilibrium for a reversible reaction, its magnitude is equal to the mass action expression at equilibrium. K varies with temperature.

Ozone

We breathe 24 hours a day, 7 days a week, consuming about 25 kg of air every day. It turns out that we practically predetermine our health by the air we breathe.

Conjugate Acid-base Pair

In Bronsted-Lowry terminology, a reactant and product that differ by a proton, H+.