【】C2H4 Lewis Structure ,Valence Electrons ,Formal Charge

April 21, 2021

C2H4 Lewis structure

Answer:

In C2H4 Lewis Dot structure,two double bonds exist between the two carbon atoms.Besides,each carbon has two hydrogen atoms using two single bonds.In C2H4 Lewis Dot structure,there are totally twelve valence electrons.

Explanation:

Hello,today I am going to draw the C2H4 Lewis structure in just few steps.

C2H4 Lewis structure Setup Step-1:

To draw the C2H4 lewis structure , we have to find out the C2H4 valence electrons first.We express valence electrons as dots in CH2CH2 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.

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 hydrogen(H).

To get the valence electrons of hydrogen(H),we need to look at the electronic configuration of hydrogen (H).

H(1)=1s¹

The highest value of principal quantum number here is n=1.

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 hydrogen(H) is 1.

Step-2:C2H4 Valence Electrons

Now we have to count total number of C2H4 Valence electrons .

2×C = 4 ×2 =8

4×H=4×1= 4

So,the total number of C2H4 valence electrons is twelve ( 8+ 4=12) .These 12 valence electrons have two tasks at the the same time.They connect all the atoms and satisfy the duet rule of hygrogens and octet rule of two carbon atoms.

C2H4 Lewis structure Setup Step-3:

Now we have to determine the central atom in C2H4.The central atom is that kind of atom that is single or that has lower electronegativity.In case of C2H4,Carbon,C, is the central atom which has two atoms and H is the outer atom.Hydrogen is always considered as outer atom

C2H4 Lewis structure Setup Step-4:

Now we need to connect the two central atoms using single bond or line(-) or two dots【●●).

Every line represent two 【●●】dots or two valence electrons.

In the above structure,we have used 2 valence electrons.So,we have 12-2 = 10 valence electrons left.

Now we need to connect the outer atoms equally with both carbons.

So,to connect 4 hydrogen atoms ,we have used 8 valence electrons out of 10.Now we have (10 -8 =2) two valence electrons left.

Look ,both carbon atoms have 6 valence electrons here.To have the octet,we need to place two valence electrons between them.

Now both carbon has satisfied their octet and four hydrogens have satisfied their duet.This is the C2H4 (ethene)Lewis structure.

C2H4 (Ethene)Lewis Structure