Definitions for alpha particle
al·pha par·ti·cle

Princeton's WordNetRate this definition:4.0 / 2 votes

1. alpha particlenoun

   a positively charged particle that is the nucleus of the helium atom; emitted from natural or radioactive isotopes

GCIDERate this definition:0.0 / 0 votes

1. alpha particle

   a particle emitted at high velocity from certain radioactive substances. It is identical to the helium nucleus, consisting of two protons and two neutrons. Rays of such particles are called alpha rays.

WiktionaryRate this definition:0.0 / 0 votes

1. alpha particlenoun

   A positively charged nucleus of a helium-4 atom (consisting of two protons and two neutrons), emitted as a consequence of radioactivity; u03B1-particle

WikipediaRate this definition:0.0 / 0 votes

1. Alpha particle

   Alpha particles, also called alpha rays or alpha radiation, consist of two protons and two neutrons bound together into a particle identical to a helium-4 nucleus. They are generally produced in the process of alpha decay, but may also be produced in other ways. Alpha particles are named after the first letter in the Greek alphabet, α. The symbol for the alpha particle is α or α2+. Because they are identical to helium nuclei, they are also sometimes written as He2+ or 42He2+ indicating a helium ion with a +2 charge (missing its two electrons). Once the ion gains electrons from its environment, the alpha particle becomes a normal (electrically neutral) helium atom 42He. Alpha particles have a net spin of zero. Due to the mechanism of their production in standard alpha radioactive decay, alpha particles generally have a kinetic energy of about 5 MeV, and a velocity in the vicinity of 4% of the speed of light. (See discussion below for the limits of these figures in alpha decay.) They are a highly ionizing form of particle radiation, and (when resulting from radioactive alpha decay) usually have low penetration depth (stopped by a few centimetres of air, or by the skin). However, so-called long range alpha particles from ternary fission are three times as energetic, and penetrate three times as far. The helium nuclei that form 10–12% of cosmic rays are also usually of much higher energy than those produced by nuclear decay processes, and thus may be highly penetrating and able to traverse the human body and also many metres of dense solid shielding, depending on their energy. To a lesser extent, this is also true of very high-energy helium nuclei produced by particle accelerators.

ChatGPTRate this definition:0.0 / 0 votes

1. alpha particle

   An alpha particle is a positively charged particle that consists of two protons and two neutrons. It is identical to the nucleus of a helium atom. Alpha particles are emitted in the process of alpha decay, which is a type of radioactive decay.

WikidataRate this definition:0.0 / 0 votes

1. Alpha particle

   Alpha particles consist of two protons and two neutrons bound together into a particle identical to a helium nucleus. They are generally produced in the process of alpha decay, but may also be produced in other ways. Alpha particles are named after the first letter in the Greek alphabet, α. The symbol for the alpha particle is α or α2+. Because they are identical to helium nuclei, they are also sometimes written as He2+ or 4 2He2+ indicating a Helium ion with a +2 charge. If the ion gains electrons from its environment, the alpha particle can be written as a normal Helium atom 4 2He. The nomenclature is not well defined, and thus not all high-velocity helium nuclei are considered by all authors as alpha particles. As with beta and gamma rays/particles, the name used for the particle carries some mild connotations about its production process and energy, but these are not rigorously applied. Some science authors may use doubly ionized helium nuclei and alpha particles as interchangeable terms. Thus, alpha particles may be loosely used as a term when referring to stellar helium nuclei reactions, and even when they occur as components of cosmic rays. A higher energy version of alphas than produced in alpha decay is a common product of an uncommon nuclear fission result called ternary fission. However, helium nuclei produced by particle accelerators are less likely to be referred to as "alpha particles".

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1. • Particle

How to pronounce alpha particle?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say alpha particle in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of alpha particle in Chaldean Numerology is: 9

2. Pythagorean Numerology

   The numerical value of alpha particle in Pythagorean Numerology is: 5

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=alpha particle
2. ^ GCIDE
   https://gcide.gnu.org.ua/?q=alpha particle
3. ^ Wiktionary
   https://en.wiktionary.org/wiki/Alpha_Particle
4. ^ Wikipedia
   https://en.wikipedia.org/wiki/Alpha_Particle
5. ^ ChatGPT
   https://chat.openai.com
6. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=alpha particle