What is the procedure for writing a covalent Lewis structure?
Here, we should state the procedure for writing a covalent Lewis structure.
A Lewis structure is a graphic representation of the electron distribution around atoms. They illustrate the lone pairs of electrons in molecules. They are also called as Lewis dot diagrams and they are used as a simple way to show the configuration of atoms within a molecule.
Steps to write covalent Lewis structure :
1. Find the total number of valence electrons :
First, we add up the total number of valence electrons from all the atoms in the molecule.
2. Find the number of electrons needed to fill the atom’s outer electron shell :
(Elements up to period four on the periodic table need eight electrons to fill their outer electron shell. This property is often known as the "octet rule")
3. Determine the number of bonds in the molecule :
Covalent bonds are formed when one electron from each atom forms an electron pair. Here, Step 2 tells how many electrons are needed to fill the atom’s outer electron shell and Step 1 tells how many electrons we have. Subtracting the number in Step 1 from the number in Step 2 gives us the number of electrons needed to complete...