бөлшек

бөлшек

Small portion of matter, actually the msallest one after molecule. Molecule is divided to particles.

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Branche/domæne: Chemistry
Category: General chemistry
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альфа-бөлшек

Chemistry; General chemistry

A particle that is commonly ejected from radioactive nuclei, consisting of two protons and two neutrons. Alpha particles are helium nuclei. Alpha particles have a mass of 6.644 ...

бета-бөлшек

Chemistry; General chemistry

An electron emitted by an unstable nucleus , when a neutron decays into a proton and an electron. In some cases, beta radiation consists of positrons ("antielectrons" which are ...

алғашқы бөлшек

Pollution control; Air pollution

Particles that are directly emitted from combustion and fugitive dust sources. (Compare with Secondary Particle. )

екінші бөлшек

Pollution control; Air pollution

Particles that are formed in the atmosphere. Secondary particles are products of the chemical reactions between gases, such as nitrates, sulfur oxides, ammonia, and organic ...

үш бөлшек жинағы

Jewelry; General jewelry

A three-piece (or trio) set is a bridal set (engagement ring and her wedding band) with a matching wedding band for him.

олефин

Chemistry; General chemistry

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 ...

майшыт

Chemistry; General chemistry

A colloid formed from tiny liquid droplets suspended in another, immiscible liquid. Milk is an example of an emulsion.

нейтрино

Chemistry; General chemistry

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

қос жылу

Chemistry; General chemistry

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.

калориметр

Chemistry; General chemistry

An insulated vessel for measuring the amount of heat absorbed or released by a chemical or physical change.

гидроксил

Chemistry; General chemistry

1. An -OH group within a molecule. 2. A free radical formed by abstraction of a hydrogen atom from water.

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Ораза байрам

Muslim holiday that marks the end of Ramadan, Muslims are not only celebrating the end of fasting, but thanking GOD for the help and strength that he ...