National Research Council Canada
Symbol of the Government of Canada

Periodic Table
of the Elements

1
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
18

2
 
 
 
 
 
 
 
 
 
 
13
14
15
16
17

 
 
 
 
 
 
 
 
 
 

3
4
5
6
7
8
9
10
11
12



*
La-
Lu 

**
Ac-
Lr 
 

 
*
**

Atomic weights of the elements are based on the values set by the International Union of Pure and Applied Chemistry (IUPAC) 2007.