Question

It is said that elements react to complete octet in the outermost shell But For Iron it has 2,8,14,2 and its valency is 2 that means it looses 2 electron but why does it need to complete 14 valence elctrons?

Answer 1

Explanation:

We all know that the chemical formula for water is H2O. How many times have we wondered why it is written as “H2O” and not something else? What is the reason for this particular formula? The answer to the above question is “Valency”. Let us know more about Valency and how it helps in determining a formula!

Answer 2

Answer:

We all know that the chemical formula for water is H2O. How many times have we wondered why it is written as “H2O” and not something else? What is the reason for this particular formula? The answer to the above question is “Valency”. Let us know more about Valency and how it helps in determining a formula!