алфа-честица

алфа-честица

1) Nucleus formed by the α-process (q.v.) (see even-even nuclei.)

2) Particle first discovered in radioactive α decay, and later identified as helium nuclei (two protons and two neutrons bound together.)

3) The nucleus of a 4He atom, consisting of two protons and two neutrons. Mass of α-particle 4.00260 amu.

0 0

Verbeter het

Een afbeelding toevoegen

Deel van toespraak: noun
Synoniem(en):
Blossary:
Industrie/Domein: Astronomy
Category: General astronomy
Company: Caltech
Product:
Acroniem-Afkorting:

Toevoegen aan mijn woordenlijst

Andere talen:

Gerelateerde termen

алфа честица

Physics; General physics

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

алфа честица

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 ...

честица

Semiconductors; Silicon wafer

A small,discrete piece of foreign material or silicon not connected crystallography to the wafer.

честица

Pharmaceutical; Medical devices;

a tiny mass of material.

zenit

Astronomy; General astronomy

The point directly overhead in the sky.

рефрактор

Astronomy; General astronomy

A telescope that uses as its primary optical element a lens. Binoculars are a type of refractor. In general, refractors are much more expensive to build and buy than are ...

рефлектор

Astronomy; General astronomy

A telescope that uses as its primary optical element a mirror. Nearly all large telescopes in use today by amateur and professional astronomers are reflecting telescopes.

фотометрија

Astronomy; General astronomy

In astronomy, the measurement of the light emitting from astronomical objects, generally in the visible or infrared bands, in which a specific or general wavelength band is ...

паралакса

Astronomy; General astronomy

The apparent displacement or the difference in apparent direction of an object as seen from two different points not on a straight line with the object (as from two different ...

орбита

Astronomy; General astronomy

The path of one object about another (used here for an object orbiting the sun).

Terms in the News

Featured Terms

Dragan Zivanovic

0
Terms
0
Woordenlijsten
10
Followers

Industrie/Domein: Medical Category: Gastroenterology

хемокроматоза

A disease that occurs when the body absorbs too much iron or receives many blood transfusions. The body stores the excess iron in the liver, pancreas, ...