Resposta:
C-6 N-7 S-16 Au-79 C u-29
Al- 13 Mg-12 He-2 F-9 Br-35
Se-34 Ar-18 Co-27 Ru-44 Po-84
Li-3 Pb-82 H-1 Ba-56 O-8
Ca-20 Be-4 Ne-10 P-15 Kr-36
Hg-80 Fe-26 Zr-40 Sn-50 Lr-103
K-19 Mn-25 Ga-31 Ag-47 B-5
Cs-55 Si-14 Na-11 Ni-28 I-53
Explicação:
