Valency of first twenty elements i the periodic table Flashcards
1
Q
Hydrogen
A
1
2
Q
Helium
A
0
3
Q
Lithium
A
1
4
Q
Beryllium
A
2
5
Q
Boron
A
3
6
Q
Carbon
A
4
7
Q
Nitrogen
A
3
8
Q
Oxygen
A
2
9
Q
Fluorine
A
1
10
Q
Neon
A
0
11
Q
Sodium
A
1
12
Q
Magnesium
A
2
13
Q
Aluminium
A
3
14
Q
Silicon
A
4
15
Q
Phosphorus
A
3
