I II III IV V VI VII VIII I II III IV V VI VII VIII. Li Be B C N O F Ne. K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr

1 15. skupina prvky s 2 p I II III IV V VI VII VIII I II III IV V VI VII VIII 1 1 H n s n p He 2 2 Li Be B C F e 3 3 a Mg (n-1) d Al Si P S Cl Ar 4 4 ...
Author:  Olga Slavíková

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