Front | Back |
1
|
Hydrogen
|
2
|
Helium
|
3
|
Lithium
|
4
|
Beryllium
|
5
|
Boron
|
6
|
Carbon
|
7
|
NItrogen
|
8
|
Oxygen
|
9
|
Fluorine
|
10
|
Neon
|
11
|
Sodium
|
12
|
Magnesium
|
13
|
Aluminum
|
14
|
Silicon
|
15
|
Phosphorus
|