6)(Grup no(Si)+Grup no(Fm))/Periyotno(Fm)+Periyot
no(Si)+(A)(Rn)+(A)(Si)=(14+14)/7+3+222+28= 257 =(A)(Fm)
7)Grup no(Rn)/Periyotno(Si)+Grup no(Fm)/Grup
no(Si)+(A)(Rn)+(A)(Si)=18/3+14/14+222+28= 257 =(A)(Fm)
+ =
(Z)(Rn)+(Z)(Cl)-Periyotno(Cl)=86+17-3= 100 =(Z)(Fm)
(A)(Rn)+(A)(Cl)=222+35= 257 =(A)(Fm)
+ =
(Z)(Rn)+(Z)(Cl)=86+17= 103 =(Z)(Lr)
(A)(Rn)+(A)(Cl)+Periyotno(Rn)-Grup no(Cl)/Grup no(Lr)=222+35+6-
17/17= 262 =(A)(Lr)
+ =
(Z)(Rn)+(Z)(Ca)+Grup no(Db)-Periyotno(Rn)=86+20+5-6= 105 =(Z)(Db)
(A)(Rn)+(A)(Ca)=222+40= 262 =(A)(Db)
+ =
(Z)(Rn)+(Z)(Ca)=86+20= 106 =(Z)(Sg)
(A)(Rn)+(A)(Ca)+Periyotno(Ca)=222+40+4= 266 =(A)(Sg)
+ =
(Z)(Rn)+(Z)(V)=86+23= 109 =(Z)(Mt)
(A)(Rn)+(A)(V)-Grup no(V)=222+51-5= 268 =(A)(Mt)
+ =
(Z)(Rn)+(Z)(Fe)-Grup no(Rn)/Periyotno(Rn)=86+26-18/6= 109 =(Z)(Mt)
(A)(Rn)+(A)(Fe)=222+56= 278 =(A)(Mt)