čestica

čestica

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Loại từ: noun
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Ngành nghề/Lĩnh vực: Chemistry
Category: General chemistry
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beta čestica

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 ...

alfa-čestica

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 ...

alfa čestica

Physics; General physics

The nucleus of a helium atom (two protons and two neutrons) emitted as radiation from a decaying heavy nucleus.

super čestica

Physics; Particle physics

Supersymmetry predicts the existence of superpartners of the Standard Model particles. These new types of particles, the superparticles, would represent a new quantum dimension.

alfa čestica

Anthropology; Physical anthropology

A kind of positively charged subnuclear particle (consisting of 2 protons and 2 neutrons) given off by some isotopes when they decay or fission.

isparljiv

Chemistry; General chemistry

A solid or liquid material that easily vaporizes. A material with a significant vapor pressure .

abraziv

Chemistry; General chemistry

A very hard, brittle, heat-resistant substance that is used to grind the edges or rough surfaces of an object. boron carbide, diamond, and corundum are abrasives.

diastereoizomer, diastereomer

Chemistry; General chemistry

Stereoisomers which are not mirror images of each other. Diastereomers are chemically similar but distinguishable; they have different melting points and boiling points and they ...

medicinska hemija

Chemistry; General chemistry

A branch of chemistry concerned with the discovery, design, synthesis , and investigation of biologically active compounds and reactions that these compounds undergo in living ...

slab elektrolit

Chemistry; General chemistry

A weak electrolyte is a solute that incompletely dissociates into ions in solution. For example, acetic acid partially dissociates into acetate ions and hydrogen ions, so that ...

grafit

Chemistry; General chemistry

An amorphous form of carbon , made of carbon atoms bound hexagonally in sheets (like chickenwire).

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Elizabet Tejlor

A three-time Academy Awards winner, Elizabeth Taylor is an English-American film legend. Beginning as a child star, she is known for her acting talent ...