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protaktínium
SYS d011478 LBL 00000nx--j22000003--45-- 005 20240119195924.7 100 $a 19990101csloy0103----ba0 152 $b mesh 250 $a protaktínium $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 radioactive element of the actinide group of metals. It has the atomic symbol Pa, atomic number 91, and atomic weight 231. It decays by alpha-emission. $8 eng 686 $a D01.268.271.100.725 686 $a D01.268.556.750 686 $a D01.496.749.305.100.725 686 $a D01.552.020.778 686 $a D01.552.544.750 750 $a Protactinium $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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