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dddmmmjjj
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Comment #36513635
HHeLiBeBNOFNeNaMgAlSiPSArK” verwenden, da die Ordnungszahlen von Wasserstoff (1), Helium (2), Lithium (3), Beryllium (4), Bor (5), Stickstoff (7), Sauerstoff (8), Fluor (9), Neon (…