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prvky
SYS d004602 LBL 00000cx--j2200000---45-- 005 20240119200942.6 100 $a 19990101asloy0103----ba0 152 $b mesh 250 $a prvky $8 slo 330 1-
$a Substances that comprise all matter. Each element is made up of atoms that are identical in number of electrons and protons and in nuclear charge but may differ in mass or number of neutrons. $8 eng 450 $a Element $5 e $8 eng 450 $a prvok $5 e $8 slo 450 $a element $5 e $8 slo 450 $a elementy $5 e $8 slo 550 $3 sllk_un_auth*d007554 $Y Isotopes $5 F $a izotopy 550 $3 sllk_un_auth*d011868 $Y Radioisotopes $5 F $a rádioizotopy 686 $a D01.268 750 $a Elements $8 eng 801 -0
$a US $b DNLM $c 19990101 801 -2
$a SK $b BA006 $c 20070706 801 -2
$a SK $b BA006 $c 20210907 820 $a general or unspecified; prefer specifics; ISOTOPES and RADIOISOTOPES and many specifics are also available; m for metastable = RADIOISOTOPES or specific precoordinated radioisotope $8 eng 980 $x M
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