Mg

(a)  

Ca

(a)  

Sr

(a)  

Ba

(a)  

Kim loại kiềm thồ

(a)  

B

(a)  

Al

(a)  

Ga

(a)  

C

(a)  

Si

(a)  

Ge

(a)  

Zn

(a)  

Mn

(a)  

n

(a)  

P

(a)  

F -> F-

(a)  

Cl -> Cl-

(a)  

Br -> Br-

(a)  

I -> I-

(a)  

He

(a)  

Ne

(a)  

Ar

(a)  

Kr

(a)  

Xe

(a)