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Atoms and Composite Particles Information1 #722878

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The Infinite Passport Glossary »The Infinite Passport GlossaryThe Infinite Passport Glossary☜Translated from the Passeport pour les deux infinis, IN2P3/Dunod, https://pass2i.ijclab.in2p3.fr/ (French); updated with ICHEP2024 conference (https://ichep2024.org) for IPPOG☜F1CEB7

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Matter Constituents »Matter ConstituentsMatter Constituents☜Large groups of atoms or molecules form the bulk matter of everyday life. Depending on temperature and other conditions, matter may appear in any of several states: solids, liquids, gases, and plasmas. At the most fundamental level, however, matter is composed of elementary particles known as quarks and leptons. ☜FFB597

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Atoms and Composite ParticlesAtoms and Composite Particles☜☜9FDDBE

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Atom »AtomAtom☜Fundamental component of matter. Electrically neutral, the atom is formed by a positively charged nucleus containing protons and neutrons, around which electrons orbit in a number equal to the number of protons. The atoms stability stems from the forces governing these particles and their interactions. Atoms combine into molecules and form the basis of chemistry.☜D3ABAB

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Hadrons »HadronsHadrons☜Hadrons are composite particles that contain quarks and/or antiquarks, bound together by gluons. Those made up of three quarks, each of a different colour, are called baryons. The nucleus components, protons and neutrons, are baryons. Those formed by a quark of a given colour and an antiquark of the associated anticolour are called mesons.Other hadrons of different compositions, called exotic hadrons, have been recently discovered: tetraquarks and pentaquarks.☜D3ABAB

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Neutron »NeutronNeutron☜A subatomic particle made of 2 down quarks and 1 up quark. It has a neutral electric charge and its mass equals 939 MeV/c2. The neutron decays after fifteen minutes, on average, when the particle is isolated. However, it is stable when found in atomic nuclei, together with protons.☜00CFE4

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Proton »ProtonProton☜A subatomic particle carrying an elementary electric charge. It is made up of two up quarks and one down quark, which are bound together by the strong interaction. The proton is a stable particle forming the basis of atomic nuclei.☜00CFE4

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Προστέθηκε από:- Claire Adam
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