![Are the names top, bottom, up, down, strange, and charmed arbitrarily ascribed to quarks or are the names ascribed to the quarks, because of correspondence to observed features of the quarks? - Are the names top, bottom, up, down, strange, and charmed arbitrarily ascribed to quarks or are the names ascribed to the quarks, because of correspondence to observed features of the quarks? -](https://qph.cf2.quoracdn.net/main-qimg-ba873d28fbcfcfa01ff07804970af5ff.webp)
Are the names top, bottom, up, down, strange, and charmed arbitrarily ascribed to quarks or are the names ascribed to the quarks, because of correspondence to observed features of the quarks? -
![CMS observes a potential family of tetra-quark states composed only of charm quarks | CMS Experiment CMS observes a potential family of tetra-quark states composed only of charm quarks | CMS Experiment](https://cms.cern/sites/default/files/field/image/BPH-21-003_red_cyan.png)
CMS observes a potential family of tetra-quark states composed only of charm quarks | CMS Experiment
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