Why iron shows variable valency

Before discussing what is variable valency, the concept of valency has to be understood. So, what is valency?

Which block elements show variable valency

Which block elements show variable valency

How many elements have variable valency

Variable valency chart

Variable valency is shown by

Why some elements show variable valency

Elements generally do not exist independently in nature and combine with the other elements. Valency is the combining capacity of one element with another element. Elements combine with one another to attain a stable state. It determines the number of electrons an element can donate or accept to form a stable electronic configuration.

Types of Valency

1. Valency in ionic compounds

2. Valency in covalent compounds

3. Variable valency

Valency in Ionic Compounds or Electrovalent Compounds

Ionic compounds or electrovalent compounds are compounds that form by the combination of metal ions and non-metal ions.

For example, sodium chloride (NaCl). In this compound, sodium (Na) is the metal, and chloride (Cl) is the non-metal. It is formed by the transfer of electrons.

What is variable valency

What is electrovalency? This type of chemical bonding between metal and non-metal ions is called electro valency, and these compounds are called electrovalent compounds. Electro valency can be defined as the num

do f block elements show variable valency

do s block elements show variable valency