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alfa cestica

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.

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  • ส่วนหนึ่งของคำพูด: noun
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  • อุตสาหกรรม/ขอบเขต: Astronomy
  • Category: General astronomy
  • Company: Caltech
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cestica
Chemistry; General chemistry

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

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-zrak
Chemistry; General chemistry

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 .

alfa čestica
Physics; General physics

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

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.

aktinoidi
Astronomy; General astronomy

Elementi sa atomskim brojevima od 89 (Aktinij) i 103

aktinijum
Astronomy; General astronomy

Mekan, srebrno-beli radioaktivni metal koji sija u mraku

akivna optika
Astronomy; General astronomy

Controlling the shape of a telescope mirror at a relatively slow rate.

adaptivna optika
Astronomy; General astronomy

Compensating for atmospheric distortions in a wavefront by high-speed changes in the shape of a small, thin mirror.

americijum
Astronomy; General astronomy

radioactive silvery metal which does not occur naturally

jedinica ubrzanja
Astronomy; General astronomy

A unit for measuring acceleration, which is metre per second squared.

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อุตสาหกรรม/ขอบเขต: Chemistry Category: General chemistry

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An entity that when applied to a mass causes it to accelerate. Sir Isaac Newton's Second Law of Motion states: the magnitude of a ...

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