алфа честичка

алфа честичка

Particle of matter that is positively charged. This particle consists of two neutrons and two protons and is emitted as a form of radioactivity from the nuclei of some radioisotopes. Also see beta particle and gamma rays.

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분야/도메인: 지리
카테고리: 자연지리학
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алфа-честичка

천문학; 일반 천문학

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 ...

честичка

교육; SAT 어휘

A minute particle of matter.

честичка

화학; 일반 화학

Мал дел од материјата, всушност најмалиот после молекулата. Молекулата се дели на честички.

секундарен сектор

지리; 자연지리학

Manufacturing industry.

органски

지리; 자연지리학

Manure from livestock, compost from crop cast-offs.

плима

지리; 자연지리학

The periodic rise and fall of sea level due to the gravitational pull of the sun and moon. The tidal range will be determined by the relative positions of these two bodies which ...

контрола на поплави

지리; 자연지리학

measures used to reduce the frequency and the magnitude of flooding. Two approaches: Hard engineering projects which build up banks, straighten and deepen channels, divert ...