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尤权、于伟国缺席省政协港澳委员和特邀委员座谈会

时间:2025-05-13 07:56:34 来源:网络整理 编辑:休闲

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BEIJING--Chineseresearchershavesynthesizedtwonewnucleusisotopesthatcontain84neutronsand82neutrons,ac

BEIJING--Chineseresearchershavesynthesizedtwonewnucleusisotopesthatcontain84neutronsand82neutrons,accordingtoarecentresearcharticlepublishedinthejournalPhysicalReviewLetters.Thenucleusiscomposedofprotonsandneutrons.Differentnumbersofprotonsandneutronsmakeupnucleiwithdifferentpropertieswhichwerecallednucleusisotopesbyscientists.Thesynthesisandstudyofnewnucleusisotopesareofgreatsignificanceforunderstandingboththestructureofmatterandtheevolutionofthecelestialenvironment.Previousexperimentsonproton-richnucleithatcontainaround126neutronsshowedthatahigherprotonnumbereventuallyrendersthenucleusunstable.Toseeifthesamebehavioroccursfornucleithatcontainaround82neutrons,theresearchersfromtheInstituteofModernPhysics,ChineseAcademyofSciences,studiedtheosmium-160.Theysynthesizedosmium-160andwolframium-156andfoundthattheosmium-160contains84neutronsand76protons,moreprotonsthananyother84-neutronnucleus.Thestudyillustratestheevolutionofaneutronshellwith82neutronsontheneutron-deficientsideofthenucleusisotopes.Editor:DisclaimerTheviewsandopinionsexpressedinthisarticlearethoseoftheauthor's,GMW.cnmakesnorepresentationsastoaccuracy,suitability,orvalidityofanyinformationonthissiteandwillnotbeliableforanyerrors,omissions,ordelaysinthisinformation.
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