молекула

молекула

The smallest particle of an element or compound that retains the chemical properties of the element or compound. A molecule is a collection of chemically bound atoms with characteristic composition and structure. Making or breaking bonds in a molecule changes it into a new molecule. Ionic compounds are not composed of molecules, because there is no distinct collection of ions that are chemically bound in the crystal.

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Secteur d’activité/Domaine : Chimie
Catégorie : Chimie générale
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полиатомдық молекула

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тетрафункционалды молекула

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A chemical structure that possesses four highly reactive sites.

амфипатиялық молекула

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A molecule having both hydrophilic and hydrophobic groups; examples are wetting agents and membrane lipids such as phosphoglycerides.

молекула арасындағы күш

Chimie; Chimie générale

An attraction or repulsion between molecules. Intermolecular forces are much weaker than chemical bonds. Hydrogen bonds, dipole-dipole interactions, and London forces are examples ...

кереғар емес молекула

Chimie; Chimie générale

A molecule in which the center of positive charge and the center of negative charge coincide. Examples are CCl4 and CO2; counterexamples are CHCl3 and H2O.

олефин

Chimie; Chimie générale

A compound that consists of only carbon and hydrogen, that contains at least one carbon-carbon double bond. Alkene names end with -ene. Examples are ethylene (CH2=CH2); 1-propene ...

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нейтрино

Chimie; Chimie générale

An elementary particle produced by certain nuclear decay processes. Neutrinos have no charge and extremely small masses compared to other subatomic particles.

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Chimie; Chimie générale

A device that senses temperature changes by using a pair of joined wires made of dissimilar metals that produces a voltage that changes with temperature.