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Le bloco f de le tabella periodic coniste de ille elementos de qui atomos o iones ha electrones valence in orbitales f. Configurationes electronic actual pote esser un pauc differente de lo que es predicte per le principio de Aufbau. Elementos in iste bloco es a alicun veces appella elementos de transition interne.
Periodo | ||||||||||||||
6 | 57 La |
58 Ce |
59 Pr |
60 Nd |
61 Um |
62 Sm |
63 Eu |
64 Gd |
65 Tb |
66 Dy |
67 Ho |
68 Er |
69 Tm |
70 Yb |
7 | 89 Ac |
90 Th |
91 Pa |
92 U |
93 Np |
94 Pu |
95 Am |
96 Cm |
97 Bk |
98 Cf |
99 Es |
100 Fm |
101 Md |
102 No |
Le duo series comencia con lanthano e actinium, ergo illos de le sexte periodo es appellate lanthanidos e illos de le septime periodo actinidos.
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