235 92 235 92 235 92 94 40 92 36 U + n- 0 U +¹n Zr U+nRb+ 231 Th 90 Kr Rb 235 Np 144 90 38 58 Ce+ 37 90 38 Sr+ Sr 141 56 89 Ba Se 34 139 Te Cs Cexe 52 55 58 + 3 n + 2 n + 3 n

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