quark
US /kwɑːrk/
UK /kwɑːrk/
1.
quark
any of a number of subatomic particles carrying a fractional electric charge, postulated as constituents of hadrons (such as baryons and mesons). Quarks have not been observed in isolation.
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Protons and neutrons are made up of quarks.
Protones y neutrones están compuestos por quarks.
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Scientists are still studying the properties of different types of quarks.
Los científicos aún están estudiando las propiedades de diferentes tipos de quarks.