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aktínium
SYS d000186 LBL 00000cx--j2200000---45-- 005 20240119195426.6 100 $a 19990101asloy0103----ba0 152 $b mesh 250 $a aktínium $x AD $x AE $x AN $x BL $x CF $x CH $x CL $x EC $x HI $x IP $x ME $x PD $x PK $x PO $x SD $x ST $x TO $x TU $x UR $8 slo 330 1-
$a A trivalent radioactive element and the prototypical member of the actinide family. It has the atomic symbol Ac, and atomic number 89. Its principal isotope is 227 and it decays primarily by beta-emission. $8 eng 686 $a D01.268.271.100.033 686 $a D01.268.556.025 686 $a D01.496.749.305.100.033 686 $a D01.552.020.042 686 $a D01.552.544.025 750 $a Actinium $8 eng 801 -0
$a US $b DNLM $c 19990101 801 -2
$a SK $b BA006 $c 20070706 980 $x M
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