сәулелену

A stream of alpha particles . Alpha rays rapidly dissipate their energy as they pass through materials, and are far less penetrating than beta particles and gamma rays .

инфрақызыл сәулелену

Chemistry; General chemistry

Electromagnetic radiation with wavelength longer than visible light but shorter than that of microwaves . Infrared radiation is produced by hot objects; absorption of infrared ...

сәулелену энергиясы

Chemistry; General chemistry

Energy which is transmitted away from its source, for example, energy that is emitted when electrons transition down from one level to another.

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 ...