O

(a)  

N

(a)  

jód

(a)  

rtuť

(a)  

H

(a)  

Cl

(a)  

uhlík

(a)  

Br

(a)  

astat

(a)  

železo

(a)  

F

(a)  

olovo

(a)  

Mn

(a)  

kobalt

(a)