TABLE DES ISOTOPES

8Z Noms Symb ole A MasseAtomique[u]Abondance(éléments stables)[%]Demi-vie etType d'Émission(E en MeV)88 radium Ra 222223224225226228222,015 365223,018 565224,020 199225,023 518226,025 408228,031 072(100)38 s, (6,55)11,6 d, (5,70)3,64 d, (5,68)14,8 d, - (0,09)1,60 ka , (4,78),6,7 a, - (0,02)89 actinium Ac 225227228225,023 218227,027 751228,031 16921,773 a, - (0,046 ), , 6,13 h, - (1,1), 90 thorium Th 227228229230231232234227,027 768228,028 72229,031 629230,033 080231,036 350232,038 054234,043 57010018,2 d, (5,97)1,9131 a, (5,42), 7,3 ka , (4,85)80 ka , (4,68)25,6 h, - (0,09)14,1 G a, (3,99), 24,1 d, - (0,19)91 protactinium Pa 231233234231,035 880233,040 108234,043 37032,8 ka , (5,0), 27,4 d, - (0,26)1,18 m in, - (2,3)92 uranium U 227228229230231232233234235236237238239240227,030 920228,031 278229,033 280230,033 926231,036 330232,037 13233,039 629234,040 900235,043 924236,045 563237,048 581238,050 785239,054 295240,056 560(0,0058)0,7299,2751,3 mi n, (6,8)9,3 mi n, (6,67)58 mi n, (6,42), CE21 d, (5,89)4,3 d, (5,45), CE72 a, (5,32), 159,2 k a, (4,82), 248 ka , (4,76)703,8 M a, (4,40), 23,42 M a, (4,50), 6,75 d, - (0,24)4468 M a, (4,18), 23,5 m in, - (1,21), 14 h, - (0,36)93 neptunium Np 236237239236,046 625237,048 172239,052 93622 h, - (0,52)2,2 Ma , (4,79)2,35 d, - , 94 plutonium Pu 239240242244239,052 157240,053 974242,058 710244,064 19924,1 ka , (5,15), 6,6 ka , (5,16)0,38 M a, (4,90)82 Ma , 95 américium Am 241243241,056 689243,061 374470 a , (5,48)7,37 ka , (5,27), 96 curium Cm 243245246243,061 377245,065 484246,067 37035 a, (5,78)8,5 ka , (5,34), 4 ka, (5,36)97 berkélium Bk 245247245,066 240247,070 305 d, CE1,4 ka , (5,5), 98 californium Cf 246249250246,068 780249,074 845250,076 55036 h, (6,75)351 a , , 10 a, (6,00)