N
Ca
I
Al
He
K
S
Pb
Li
Kr
Tl
C
Mg
Te
F
H
As
Rn
Fr
Be
Ga
Ne
Cs
Cl
B
O
Sn
Sb
At
Ra
Ar
Si
Br
Xe
P
Bi
Na
Rb
Po
In
Ba
Se
Ge
Sr