Question

Atomic number of Beryllium and phosphorus is 4 and 15 respectively .Write the electronic. configuration of the two and deduce the valency from the same . To which group do they belong?​

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!