Neutrons yog tsim tawm ntau hauv nuclear fission thiab fusion. Lawv yog cov tseem ceeb pab rau lub nucleosynthesis ntawm cov tshuaj nyob rau hauv lub hnub qub los ntawm fission, fusion, thiab neutron capture processes. Lub neutron yog qhov tseem ceeb rau kev tsim hluav taws xob nuclear.
Thaum twg neutrons tsim?
Los ntawm 1920, physicists paub tias feem ntau ntawm cov atom yog nyob rau hauv ib tug nucleus ntawm nws qhov chaw, thiab hais tias lub hauv paus core muaj protons. Nyob rau hauv Tsib Hlis 1932 James Chadwick tshaj tawm tias cov tub ntxhais tseem muaj cov khoom siv tshiab, uas nws hu ua neutron. Chadwick yug hauv 1891 hauv Manchester, England.
Yuav ua li cas thaum lub proton thiab neutron tsim?
Yuav kom tsim cov atomic nuclei, cov nucleons (cov lus tshawb fawb rau protons thiab neutrons) yuav tsum muaj peev xwm sib tsoo thiab ua ke. Nyob rau hauv lub ntiaj teb thaum ntxov cov tshuaj tiv thaiv tseem ceeb yog kev sib tsoo ntawm ib tug proton thiab ib tug neutron los tsim ib deuterium nucleus (ib qho isotope ntawm hydrogen)
Neutrons dawb tsim li cas?
Nquag, cov neutrons raug khi rau hauv atomic nucleus. Lawv tuaj yeem teeb tsa dawb los ntawm cov tshuaj tiv thaiv nuclear Dawb neutrons tsis ruaj khov, lawv lwj nrog ib nrab-lub neej ntawm li 15 feeb rau hauv ib qho proton, electron thiab antineutrino. Muaj ntau hom neutron qhov chaw uas siv ntau yam txheej txheem rau kev tso tawm ntawm neutrons.
Neutrons nyob qhov twg?
Neutrons thiab protons, feem ntau hu ua nucleons, tau khi ua ke hauv lub hauv paus ntom ntom ntawm ib lub atom, lub nucleus, qhov uas lawv suav txog 99.9 feem pua ntawm cov atom qhov loj.
