[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.sheeni.cz\/najdeme-v-prirode-celou-periodickou-tabulku-prvku\/#Article","mainEntityOfPage":"https:\/\/www.sheeni.cz\/najdeme-v-prirode-celou-periodickou-tabulku-prvku\/","headline":"Najdeme v p\u0159\u00edrod\u011b celou periodickou tabulku prvk\u016f?","name":"Najdeme v p\u0159\u00edrod\u011b celou periodickou tabulku prvk\u016f?","description":"Periodickou tabulku prvk\u016f zn\u00e1 ka\u017ed\u00fd z\u00a0n\u00e1s. Setkali jsme se s\u00a0n\u00ed ji\u017e na z\u00e1kladn\u00ed \u0161kole, mnoz\u00ed z\u00a0n\u00e1s potom i v\u00a0dal\u0161\u00edm studiu \u010di v\u00a0zam\u011bstn\u00e1n\u00ed. Bylo n\u00e1m \u0159e\u010deno, \u017ee v\u00a0n\u00ed najdeme atomy, ze kter\u00fdch se skl\u00e1d\u00e1 n\u00e1\u0161 sv\u011bt. To vyvol\u00e1v\u00e1 p\u0159edstavu, \u017ee v\u0161echny prvky, se kter\u00fdmi se zde setk\u00e1me, najdeme v\u00a0p\u0159\u00edrod\u011b, by\u0165 jen ve stopov\u00e9m mno\u017estv\u00ed. To v\u0161ak […]","datePublished":"2023-09-28","dateModified":"2024-01-02","author":{"@type":"Person","@id":"https:\/\/www.sheeni.cz\/author\/#Person","name":"","url":"https:\/\/www.sheeni.cz\/author\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/0004469d2196026c4aaacbb56e80b8fe204b91e98e8d884732a12310e081011a?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/0004469d2196026c4aaacbb56e80b8fe204b91e98e8d884732a12310e081011a?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"sheeni.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.sheeni.cz\/wp-content\/uploads\/art478065_16x9_20261013_115216_ZiVdlB.jpg","url":"https:\/\/www.sheeni.cz\/wp-content\/uploads\/art478065_16x9_20261013_115216_ZiVdlB.jpg","height":0,"width":0},"url":"https:\/\/www.sheeni.cz\/najdeme-v-prirode-celou-periodickou-tabulku-prvku\/","about":["V\u011bda"],"wordCount":403,"articleBody":"\tPeriodickou tabulku prvk\u016f zn\u00e1 ka\u017ed\u00fd z\u00a0n\u00e1s. Setkali jsme se s\u00a0n\u00ed ji\u017e na z\u00e1kladn\u00ed \u0161kole, mnoz\u00ed z\u00a0n\u00e1s potom i v\u00a0dal\u0161\u00edm studiu \u010di v\u00a0zam\u011bstn\u00e1n\u00ed. Bylo n\u00e1m \u0159e\u010deno, \u017ee v\u00a0n\u00ed najdeme atomy, ze kter\u00fdch se skl\u00e1d\u00e1 n\u00e1\u0161 sv\u011bt. To vyvol\u00e1v\u00e1 p\u0159edstavu, \u017ee v\u0161echny prvky, se kter\u00fdmi se zde setk\u00e1me, najdeme v\u00a0p\u0159\u00edrod\u011b, by\u0165 jen ve stopov\u00e9m mno\u017estv\u00ed.\tTo v\u0161ak nen\u00ed a\u017e tak \u00fapln\u011b pravda. Ve skute\u010dnosti se z\u00a0necel\u00fdch 150 prvk\u016f, kter\u00e9 onu tabulku tvo\u0159\u00ed, jich voln\u011b najdeme pouze 92, p\u0159i\u010dem\u017e t\u00edm posledn\u00edm je Uran. Je pravd\u011bpodobn\u00e9, \u017ee v\u00a0minulosti se jich vyskytovalo v\u00edce, av\u0161ak ty jsou nestabiln\u00ed s\u00a0krat\u0161\u00edm polo\u010dasem rozpadu. To zkr\u00e1tka znamen\u00e1, \u017ee se postupem \u010dasu p\u0159em\u011bnily na jin\u00e9, stabiln\u011bj\u0161\u00ed prvky.\tJe pravdou, \u017ee ani uran nen\u00ed zrovna stabiln\u00ed a tak\u00e9 proch\u00e1z\u00ed on\u00edm procesem p\u0159em\u011bny. To je ostatn\u011b tak\u00e9 d\u016fvod, pro\u010d je radioaktivn\u00ed. Pouze jeho polo\u010das rozpadu je mnohem del\u0161\u00ed, a tak jej je\u0161t\u011b m\u016f\u017eeme nal\u00e9zt, a samoz\u0159ejm\u011b tak\u00e9 vyu\u017e\u00edt.\t\tOt\u00e1zkou samoz\u0159ejm\u011b je, jak tedy o ostatn\u00edch prvc\u00edch v\u00edme, kdy\u017e se p\u0159irozen\u011b nevyskytuj\u00ed. Odpov\u011b\u010f zn\u00ed, \u017ee byly vytvo\u0159eny v\u00a0laborato\u0159\u00edch. Dnes ji\u017e m\u00e1me urychlova\u010de \u010d\u00e1stic, kter\u00e9 n\u00e1m umo\u017e\u0148uj\u00ed takto objevovat a popisovat nov\u00e9 prvky.\tProbl\u00e9m je s\u00a0t\u00edm, \u017ee jsou velmi nestabiln\u00ed a velmi brzy se rozpadnou a p\u0159em\u011bn\u00ed na n\u011bkter\u00fd z\u00a0prvk\u016f s\u00a0ni\u017e\u0161\u00edm atomov\u00fdm \u010d\u00edslem a vy\u0161\u0161\u00ed stabilitou. I proto tak\u00e9 maj\u00ed sv\u00e9 vyu\u017eit\u00ed pouze ve velmi specializovan\u00fdch p\u0159\u00edpadech, hlavn\u011b pak v\u00a0petrochemick\u00e9m pr\u016fmyslu a n\u011bkdy tak\u00e9 v\u00a0l\u00e9ka\u0159stv\u00ed.\tJe tedy jasn\u00e9, \u017ee bychom periodickou tabulku nem\u011bli br\u00e1t jako n\u011bco, co je naprosto nem\u011bnn\u00e9. Nov\u00e9 prvky jsou vytv\u00e1\u0159eny denn\u011b, zat\u00edmco o t\u011bch st\u00e1vaj\u00edc\u00edch jsou objevov\u00e1ny nov\u00e9 poznatky. D\u00edky tomu je i tato tabulka neust\u00e1le upravov\u00e1na. Za deset let pak m\u016f\u017ee vypadat \u00fapln\u011b jinak, ne\u017e jak ji zn\u00e1me dnes. Kdo v\u00ed, co v\u0161e bude za tu dobu objeveno, a nejen v\u00a0chemii. Nezb\u00fdv\u00e1 n\u00e1m, ne\u017e \u010dekat a uvid\u011bt, kam n\u00e1s nov\u00e9 objevy zavedou.                                                                                                                                                                                                                                                                                                                                                                                                "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Najdeme v p\u0159\u00edrod\u011b celou periodickou tabulku prvk\u016f?","item":"https:\/\/www.sheeni.cz\/najdeme-v-prirode-celou-periodickou-tabulku-prvku\/#breadcrumbitem"}]}]