beta čestica

beta čestica

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 identical to electrons but carry a +1 charge.") Note that beta particles are created in nuclear decay; they do not exist as independent particles within the nucleus.

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čestica

화학; 일반 화학

Čestice si male, određene krutine suspendirane u tekućini ili plinu.

alfa-čestica

화학; 일반 화학

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

물리; 일반 물리학

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

super čestica

물리; 소립자 물리학

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

isparljiv

화학; 일반 화학

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

abraziv

화학; 일반 화학

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

화학; 일반 화학

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

화학; 일반 화학

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

화학; 일반 화학

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 ...