Valency Chart: Valency of First 20 elements
Here is the valency table which shows the valency of the first 20 elements from the periodic table with atomic numbers:
Atomic Number |
Element |
Valency |
---|---|---|
1 |
Hydrogen |
1 |
2 |
Helium |
0 |
3 |
Lithium |
1 |
4 |
Beryllium |
2 |
5 |
Boron |
3 |
6 |
Carbon |
4 |
7 |
Nitrogen |
3 |
8 |
Oxygen |
2 |
9 |
Fluorine |
1 |
10 |
Neon |
0 |
11 |
Sodium |
1 |
12 |
Magnesium |
2 |
13 |
Aluminium |
3 |
14 |
Silicon |
4 |
15 |
Phosphorus |
3 |
16 |
Sulphur |
2 |
17 |
Chlorine |
1 |
18 |
Argon |
0 |
19 |
Potassium |
1 |
20 |
Calcium |
2 |
Read More: Atomic Number of Elements
Valency
Valency of an element is a measure of an atom’s ability to combine with other atoms to create molecules or chemical compounds. The characteristics of an element that indicate how many more atoms can join one of its atoms in a covalent bond are known as valence, or valency, in chemistry. The term, which was first used in 1868, is used to represent both the broad potential of combining an element and the numerical value of the power of combining. Since the majority of bonds are created by the interchange of valence electrons, valence is defined as the number of electrons. The valence electrons determine what valences are and what their meaning is in chemistry.