Step method to draw the Lewis dot structure of BrF5.
Step 1: Find valence e- for all atoms. Add them together.
Step2: Find octet e- for each atom and add them together.
Bromine gets 12 electrons in order to make 5 bonds with surrounding atoms.
Step3: Gives you bonding e-. Subtract step 1 total from step 2
Step 4: Find number of bonds by diving the number in step 3 by 2(because each bond is made of 2 e-)
10e-/2= 5 bond pairs
Step 5: Find the number of nonbonding (lone pairs) e-. Subtract step 3 number from step 1.
42-10= 32e-=16 lone pairs
Use information from step 4 and 5 to draw the lewis structure.
Lewis dot structure of BrF5
Alternatively a dot method can be used to draw the lewis
structure of BF3.
Calculate the total valence electrons in BF3 molecule.
Put Bromine in the center and five fluorine atoms on the
Put a pair of electrons connecting the side atom with central atom.Pur remaining electrons on the side atoms.Make sure each side atom get 8 electrons to get octet state.( Bromine get expanded octet state)
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: