Step method to draw the Lewis dot structure of C3H8.
Step 1: Find valence e- for all atoms. Add them together.
Step2: Find octet e- for each atom and add them together.
Step3: Subtract step 1 total from step 2.��Gives you bonding e-.
Step 4: Find number of bonds by diving the number in step 3 by 2(because each bond is made of 2 e-)
20e-/2= 10 bond pairs
Step 5: Find the number of nonbonding (lone pairs) e-. Subtract step 3 number from step 1.
20-20= 0 e-=0 lone pairs
Use information from step 4 and 5 to draw the lewis structure.
Lewis dot structure of C3H8
Alternatively a dot method can be used to draw the lewis
Calculate the total valence electrons in the molecule.
Put cabons side by side as shoun below. Put hydrogen on
carbons until octet is fulfilled.
Want a good tutorial on how to draw Lewis dot structures? Go to Lewis Dot Structure Tutorial
Here are all of the molecules that we do an in-depth Lewis structure analysis on: