How to calculate the formal charge of CO
Solution:
The formal charge of carbon (O) and oxygen(O) in CO is -1 and +1.
Explanation:
In this post,I am going to show you how to calculate formal charge of each atom in CO.
To find the formal charge of a atom from CO Lewis structure,you need to apply the following formal charge formula or equation:
●Formal charge = Valence electrons in neutral atom - 1/2 (Bonding Electrons) - Nonbonding electrons
To find the formal charge of C and O atom from CO Lewis structure,you need to apply the following formal charge formula:
●Formal charge = Valence electrons in neutral atom - 1/2 (Bonding Electrons) - Nonbonding electrons
Consider the best Lewis structure of CO molecule.Here you need to calculate the formal charge of oxygen atom and carbon atom.
Best CO Lewis Structure |
Formal charge of O atom in CO:
●The number of valence electrons in a neutral oxygen atom is 6 as it is the element of group VIA.
●Number of Nonbonding electrons of O is 2.
●Number of bonding electrons of O is 6.
●Formal charge of O = Valence electrons in neutral O atom - 1/2 (Bonding Electrons of O) - Nonbonding electrons of O
=6 - 1/2(6) - 2
=6 -3 -2
=6-5
=+1
So,the formal charge of O atom in CO best Lewis structure is +1.
Formal charge of C atom in CO:
●The number of valence electrons in a neutral carbon atom is 4 as it is the element of group IVA.
Formal charge of O atom in CO:
●The number of valence electrons in a neutral oxygen atom is 6 as it is the element of group VIA.
●The number of valence electrons in a neutral carbon atom is 4 as it is the element of group IVA.
●Number of nonbonding electrons of C is 2.
●Bonding electrons of C is 6.
●Formal charge of C = Valence electrons in neutral C atom - 1/2 (Bonding Electrons of C) - Nonbonding elctrons of C
=4 - 1/2(6) - 2
=4 - 3 -2
=4 -5
=-1
So,the formal charge of C atom in CO best Lewis structure is -1.
Now if you add the formal charge of each atom,you will get {(-1)+(+1)=0} zero.This means that CO'overall charge is zero.
Here is the another formula for calculating the formal charge of C and O atoms from the CO Lewis structure.
Formal Charge=Valence Electrons -Dots - Lines
Formal charge of O atom in CO:
●The number of valence electrons in a neutral oxygen atom is 6 as it is the element of group VIA.
●Dots electrons of O is 2.
●Lines or bonds of O is 3.
●Formal charge of O = Valence electrons in neutral O atom -Dots - Lines
= 6 - 2 - 3
= 6 -5
=+1
So,the formal charge of O atom in CO best Lewis structure is +1.
Formal charge of C atom in CO:
●The number of valence electrons in a neutral carbon atom is 4 as it is the element of group IVA.
●The number of valence electrons in a neutral carbon atom is 4 as it is the element of group IVA.
●Dots electrons of C is 2.
●Lines or bonds of C is 3.
●Formal charge of C = Valence electrons in neutral C atom -Dots - Lines
= 4 - 2- 3
= 4 - 5
=-1
So,the formal charge of C atom in CO best Lewis structure is -1.
Summary:
The formal charges of C and O in the best CO Lewis Structure is -1 and +1.
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