【】CCl4 Lewis Structure ,Valence Electrons ,Formal Charge ,Polar or Nonpolar
CCl4 Lewis Structure
Hello,today I am going to draw the CCl4 Lewis structure for CCl₄ in just four steps.
CCl4 Lewis Structure Setup Step-1:
To draw the CCl4 Lewis structure (carbon tetrachloride), we have to find out the CC4 valence electrons first.We express valence electrons as dots in lewis dot structure.
To get the valence electrons of carbon,we need to look at the electronic configuration of carbon.
C(6)=1s²2s²2p²
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 carbon is 4.
Now,to draw the lewis dot structure of carbon,we need to imagine a square around carbon.
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We know a square has four sides.At first,we have to place one valence electrons as dot to every side of that square before pairing up.
Again, we have to find out the valence electrons of chlorine.
To get the valence electrons of chlorine,we need to look at the electronic configuration of chlorine.
Cl(17)=1s²2s²2p⁶3s²3p⁵
The highest value of principal quantum number here is n=3.
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 chlorine is 7.
CCl4 Lewis structure Setup Step-2:
Now we have to count total number of valence electrons for CCl₄.
C =4
4×Cl=7×4=28
So, CCl₄ has thirty two valence electrons in total (4+28=32 ).
CCl4 Lewis structure Setup Step-3:
Now we have to determine the central atom in CCl₄.The central atom is that kind of atom that is single or that has lower electronegativity.In case of CCl₄,Carbon,C, is the central atom and Cl is the outer atom .
CCl4 Lewis structure Setup Step-4:
Now we need to connect the outer atoms with the central atoms using single bond or line(-).Every line represent two 【●●】dots or two valence electrons.
In the above structure,we have used 8 valence electrons.So,we have 32-8=24 left.
In the above structure,carbon has octet.But Cl atoms do not have octet.
So,we need to use 24 (left) valence electrons to satisfy four chlorine atoms.
In the above structure,we have used 32 valence valence electrons.
So the CCl4 Lewis structure will be the following.
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| CCl4 Lewis Structure |
Formula-3
Formal Charge=Valence Electrons-Dots-Lines
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