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1 H.
2 N.
3 Hg
4 Al
5 Mg
6 Ti
7 K.
8 C.
9 Co
10 O.
11 Pt
12 Si
13 P.
14 S.
15 Fe
16 Ca
17 Ni
18 Ar
19 Ag
20 F..
21 Cr
22 He
23 Cu
24 Cl
25 Na
26 Pb
27 Zn
28 B.
29 Ne
30 Au
18
21
26
16
8
13
19
11
3
30
1
2
9
10
6
12
14
4
5
27
23
17
15
7
20
25
24
29
28