Bromine (Br2) Molecule Lewis Structure

Bromine is a diatomic molecule and contains only bromine atoms. Lewis structure of bromine contains only one Br-Br bond and each bromine atom has three lone pairs. It is very easy to Br2 lewis structure.


Br2 lewis structure

Br2 lewis structure

There is a single bond with bromine atoms and three lone pairs on each bromine atoms. So, this lewis structure is a very simple.


Steps of drawing lewis structure of Br2

When we draw a lewis structure, guidelines are given. Number of steps can be changed according the complexity of the molecule or ion. Because Br2 is a simple molecule, it is extremely easy to draw the lewis structure. However those all steps are mentioned and explained in detail in this tutorial for your knowledge.

  1. Find total number of electrons of the valance shells of bromine atoms
  2. Total electrons pairs existing as lone pairs and bonds
  3. Center atom selection
  4. Mark lone pairs on atoms
  5. Mark charges on atoms if there are charges.
  6. Check the stability and minimize charges on atoms by converting lone pairs to bonds to obtain best lewis structure.


Total number of electrons of the valance shells of Br2

There is only one element in bromine molecule. Bromine is a group VIIA element in the periodic table and contains seven electrons in its last shell. Now, we know how many electrons are there in valence shells of bromine atoms.


  • valence electrons given by bromine atoms = 7 * 2 = 14

  • Total valence electrons = 14

Total valence electrons pairs

Total valance electrons pairs = σ bonds + π bonds + lone pairs at valence shells

Total electron pairs are determined by dividing the number total valence electrons by two. For, Br2 molecule, Total pairs of electrons are seven in their valence shells.



Center atom of Br2 molecule

Because, there are only two atoms and both atoms belongs to same element, do not need to worry about center atom selection.

skeletal of Br2.jpg

Lone pairs on atoms

After determining the center atom and sketch of Br2 molecule, we can start to mark lone pairs on atoms. Remember that, there are total of seven electron pairs.

  • There is already one bond in the drawn skeletal. So, there are six remaining lone pairs to mark on atoms
  • Because, there is no center atom, we can mark remaining lone pairs on both bromine atoms. Each bromine atom will take three lone pairs.
  • Now, all valence electrons pairs are marked.
mark lone pairs on Br atom in Br2 lewis structure


Mark charges on atoms

There are no charges to mark on atoms in above structure.



Check the stability and minimize charges on atoms by converting lone pairs to bonds

Because, there are no charges in above structure, do not need to follow this step to reduce charges to get the most stable structure.


Questions






Amphoteric nature of water NO2- lewis structure N2O lewis structure, resonance structures Stability of water









Lewis Structures of Molecules

Lewis structure of sulfate ion Lewis structure of carbonate ion Nitrate ion Lewis Structure Ozone Lewis structure Lewis structure of sulfuric acid Nitric acid Lewis structure HI Lewis structure


Chemical Reactions

NaOH + Cl2 Reaction Propene and HBr reaction, mechanism Reaction of nitrogen dioxide in water Sandmeyer reactions of benzenediazonium chloride Benzene and chlorine reaction Sodium carbonate reactions Reaction of chlorine gas in water Calcium and nitric acid reaction Reactions of sodium Different reactions of urea