Lanthanides

Denomination of the set of elements of the first series of internal transition, also called rare earths. These elements are characterized by progressively occupying the 4f orbitals, lanthanum does not have any electron in 4f orbitals, so we are not usually counted among the lanthanides.

Lantánidos Lanthanides

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Chemical Glossary Terms

Chemical Terms begining with L

Lactose

Natural disaccharide that, by hydrolysis, releases galactose and glucose. The only known natural sou...

Lanthanides

Denomination of the set of elements of the first series of internal transition, also called rare ear...

Lanthanum

Chemical element of symbol La, belonging to group 3 of the periodic table, of atomic number 57 and a...

Brass

Copper and zinc alloy. The properties of brass vary according to the exact percentage of copper and ...

Laurence

Chemical element of symbol Lr, belonging to the series of the actÃ¡nidos, of atomic number 103. It...

Bleach

Aqueous solution of sodium hypochlorite and potassium hypochlorite. It is used for domestic cleaning...

Levorotatory

Optically active chemical compound that diverts the plane of polarized light in a counterclockwise d...

Boyle's Law.

It establishes that at a constant temperature (isothermal process), the volume of a gas sample is in...

Law of Charles.

It establishes that at constant pressure (isobaric process), the volume of a gas sample is directly ...

Dalton's Law

It establishes that the sum of the partial pressures of each gas in a gaseous mixture is equal to th...

Law of Faraday.

Law enunciated by Faraday in 1833 as a result of his research about the production of chemical chang...

Graham's Law

It establishes that the diffusion speed of a gas is inversely proportional to the square root of its...

Law of defined composition.

The proportion of the elements in a given compound is always the same. The substances combine in def...

Law of speed.

Equation that allows to relate the speed of a reaction with the concentrations of each one of the re...

Periodic Law.

The properties of the chemical elements are periodic function of their atomic numbers.

Liquefaction

Process in which a gas becomes liquid at high pressures and low temperatures. The gas has to be belo...

Ligando

Molecule or ion that binds to neutral atoms or metal cations to form complex ions and coordination c...

Lipids

Organic biomolecules insoluble in water and soluble in apolar solvents. They fulfill diverse biologi...

Lipolysis

Degradation of lipids stored in living organisms by the action of lipase enzymes.

Liquid

State of matter characterized by fluidity, by adapting to the container that contains it and by keep...

Lithium

Chemical element of Li symbol, belonging to group 1 of the periodic table, of atomic number 3 and at...

Leaching

Process by which dissolved substances are carried by water through the various layers of soil.

Acid rain

Phenomenon produced by the precipitation of acid gases mixed with rainwater. The gases that cause ac...

Radioactive fallout

Precipitation formed by dust and fine ashes dispressed in the atmosphere containing radioactive mate...

Wavelength.

Property characteristic of light, similar to its color, and equivalent to the length of the complete...

Luminescence

Emission of light produced by a substance at room temperature or not too high. If it is produced by ...

Lutetius

Chemical element of symbol Lu, belonging to the series of lanthanides, of atomic number 71 and atomi...

Lanthanides

Chemical Glossary Terms

Chemical Terms begining with L

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