H,He,Li,Pi,PeC,N,O,F,Ne,Na,Mg,Al,Gi,P,S,Cl,Ar,K,Ga,Fe,Zn.Cu,
H2O,CO2,P2O5,NO,HF,NaO,MgO,Al2O3,HCl,K2MnO3,CaO,Zn2O4,CuO