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The metal ion and its coordinating ligands but not any uncoordinated counter-ions.

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Heat Capacity

The amount of heat required to raise the temperature of a body (of any mass) one degree Celsius.

Photon

A packet of light or electromagnetic radiation, also called quantum of light.

 

How to keep flowers in a vase for long time

The best gift for a woman, as you know, is a beautiful bouquet of flowers. But the cut flowers at home quite quickly wither. But your favorite roses or tulips can keep their freshness if you use our advice. Chemistry and various chemical elements will help us in this difficult matter!

Atom

The smallest particle of an element.

Potential Energy

Energy that matter possesses by virtue of its position, condition or composition.

Periodic Law

The properties of the elements are periodic functions of their atomic numbers.

yttria

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

Supercritical Fluid

A substance at temperature above its critical temperature.

Graham's Law

The rates of effusion of gases are inversely proportional to the square roots of their molecular weights or densities.

Isotopes

Two or more forms of atoms of the same element with different masses, atoms containing the same number of protons but different numbers of neutrons.