I1: AL,AT,BI,CN,GE,IM,NO,SP,SV,TO,VB,VC
IX1:AO
I2: BG,BS,CO,CR,LC,LO,MB,MI,MN,PV,SO,VA
I3: BL,PD,RO,TV,VE,VI,VR
IN3:BZ,TN
IV3:GO,PN,TS,UD
I4: BO,FC,FE,MO,PC,PR,RA,RE,RN
I5: AR,FI,GR,LI,LU,MS,PI,PO,PT,SI
I6: AN,AP,AQ,CH,FM,MC,PE,PS (or PU),TE
I7: BA,BR,BT,FG,LE,MT,TA
I8: AV,BN,CB,CE,CS,CZ,IS,KR,NA,PZ,RC,SA,VV
I0: FR,LT,PG,RI,RM,TR,VT
IT9:AG,CL,CT,EN,ME,PA,RG,SR,TP
IS0:CA,CI,NU,OG,OR,OT,SS,VS