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Outermost electrons of atoms, usually those involved in bonding.

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The most expensive metal in the world

Do you think the most expensive metal is gold? No! On earth there are more valuable metals. But we need to divide the value of metals that occur in nature, and metals - isotopes, which are obtained in special laboratories. Let’s look at natural metals first.

Oxide

A binary compound of oxygen.

Inert s-pair Effect

Characteristic of the post-transition minerals, tendency of the outermost s electrons to remain nonionized or un shared in compounds.

Neutralization

The reaction of an acid with a base to form a salt and water. Usually, the reaction of hydrogen ions with hydrogen ions to form water molecules.

Hydrolysis

The reaction of a substance with water or its ions.

Hydrocarbons

Compounds that contain only carbon and hydrogen.

Saccharate

A compound formed by interaction of sucrose with a metallic oxide, usually lime, and useful in the purification of sugar.

 

Electrochemistry

Study of chemical changes produced by electrical current and the production of electricity by chemical reactions.

van der Waals' Equation

An equation of state that extends the ideal gas law to real gases by inclusion of two empirically determined parameters, which are different for different gases.

Salicylate

A salt or ester of salicylic acid.