... 17Cl37 = 36, 965 90u; khi lng proton, mp = 1,00728 u; khi lng electron, me = 0,00055 u; khi lng ntron, mn = 1,00 867 u; 1u = 1 ,66 043.10-27kg; c = 2,9979.108 m/s; 1J = 6, 2418.1018 ... m/sCõu 16. Cho 1 eV = 1 ,6. 10-19 J, h = 6, 625.10-34 J.s, c = 3.108 m/s. Khi electron trong nguyờn t hyrụ chuyn t qu o dng cú nng lng Em = - 0,85 eV sang qu o dng cú nng lng En = - 13 ,6 eV ... Gii hn quang in ca catụt v bc súng bc x kớch thớch l: A. m602,0,m 565 ,00à=à= C. m478,0,m65,00à=à=B. m478,0,m 565 ,00à=à= D. m 565 ,0,m478,00à=à=Cõu 25. Theo thuyt phụtụn ca Anh-xtanh...