【】N2 Lewis Structure ,Valence Electrons,Formal Charge,Polar or Non polar

N2 Lewis Structure


Answer:

N2 Lewis structure(nitrogen electron dot structure) is that type of structure where we show the total ten  valence electrons of N2 as dots , or dots and dashes(-).In Lewis structure,it is common that a bonding pair of two electrons can be shown by  dash(-) , or dots(●●) but a lone pair of two electrons is shown by dots[●●].


In N2 Lewis structure, there are three bonds between two nitrogen atoms.
N2 Lewis Structure
Thus we get six shared  valence electrons and every nitrogen atom has one lone pairs electrons.

Thus we get six shared  valence electrons and every nitrogen atom has one lone pairs electrons.



 ●N2 Lewis structure has ten valence electrons.


N2 Lewis Structure
N2 Lewis Structure












In N2 Lewis structure,both nitrogen follow the octet rule.
In N2 Lewis structure,both nitrogen follow the octet rule.


In N2 Lewis structure,we get five pairs of electrons.Out of five pairs of electrons, N2 has three bond pairs and two lone pairs of electrons.Here,each nitrogen atom carries one lone pair of electrons.



Explanation:

Hello,today I am going to draw the N2 Lewis  structure in just few steps.


 Step-1:N2 Valence Electrons









To draw the N2 Lewis  structure , we have to find out the valence electrons of nitrogen first.We express valence electrons as dots in lewis dot structure.



To get the valence electrons of nitrogen,we need to look at the electronic configuration of nitrogen.





N(7)=1s²2s²2p³



The highest value of principal quantum number here is n=2.


The highest value of principal quantum number ,n , indicates the valence shell and we know the electrons in valence shell is called valence shell.










The nunber of valence electrons in a nitrogen atom is 5. So N2 has (5×2=10)  ten valence electrons totally.

N--> 5 

2N-->5×2 =10 



Another way, nitrogen is an element of group 5A ,so it has five valence electrons.For N2 ,we get 10 valence electrons.


                N2 Lewis  structure Setup Step-2:

For a nitrogen molecule ,N₂,the N2 Lewis  structure is given below:

N2  has total ten valence electrons.These ten valence electrons have two tasks.First,they connect two nitrogens and then satisfy the octet for them at the same time.


Now put two  between them. 



So , we have now 10-2= 8 valence electrons.

Now satisfy the octet of a nitrogen atom(Left nitrogen,say).



Now we have 8-6 =2 valence electrons left.

Now put these two valence electrons over the right side nitrogen.
 


Both nitrogen atoms do not have octet.So,we need to make two more bonds to satisfy  the octet rule for both.We will make bonds here moving lone pairs as bond pairs.





N2 Lewis Structure
N2 Lewis Structure

This is the N2 Lewis structure.In the N2 Lewis structure,we have one triple bond and one lone pair over both nitrogen atom.Both nitrogen atoms satisfy the octet rule.


N2 Lewis structure,Lewis Dot Structure for Nitrogen(N,N2)||Lewis Dot Structure of Nitrogen(N,N2)





Continue



N2 Lewis Structure:Formal Charge


Answer: 

Formal charge =Valence electrons - Unshared Electrons - 1/2(Shared Electrons)


N ----> 5 - 2 - 1/2(6) =0


N ---->5 - 2 - 1/2 (6) =0


In N2 Lewis structure,the formal charge of every nitrogen atom is zero.
N2 Lewis Structure:Formal Charge









Is N2 Lewis Structure Polar or Non Polar ?


- N2 (Nitrogen molecule) is not polar.There is no polar bond between two nitrogen atoms as there is no electronegativity difference between them.As a result,no bond dipole is produced.So bond dipole moment is zero, and thus the net molecular  dipole moment is also zero.So, N2 is not polar .N2 is a non polar molecule.

How many bonding electrons are in the Lewis structure of N2?


Answer:

There are 6 bonding electrons or 3 pairs of bonding electrons in the Lewis structure of N2.


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