Calculate the formal charge of each oxygen atom of ozone molecule
Answers
Answered by
16
Formal charge= no.of valence electron of an atom - the no.of electrons assigned to an atom
Answered by
19
Consider the resonance structures for O3.
Oxygen has 6 valence electrons. Look at the top left oxygen atom. It has two lone pairs (4 electrons) and a double bond (2 electrons).
Even though a double bond contains 4 electrons total and is counted as such when seeing that oxygen's octet is filled, 2 electrons belong to each oxygen and they are shared among the two.
Let's examine the top resonance structure:
Left: 6 valence −6 assigned =0 formal charge
Center 6 valence −5 assigned =1 formal charge
Right: 6 valence −7 assigned =−1 formal charge
Notice that even though the atoms have varying formal charges, the overall charge of O3 is the sum of the formal charges in the molecule: 0+1+(−1)=0.
Ions' formal charge sums are ≠0.
Oxygen has 6 valence electrons. Look at the top left oxygen atom. It has two lone pairs (4 electrons) and a double bond (2 electrons).
Even though a double bond contains 4 electrons total and is counted as such when seeing that oxygen's octet is filled, 2 electrons belong to each oxygen and they are shared among the two.
Let's examine the top resonance structure:
Left: 6 valence −6 assigned =0 formal charge
Center 6 valence −5 assigned =1 formal charge
Right: 6 valence −7 assigned =−1 formal charge
Notice that even though the atoms have varying formal charges, the overall charge of O3 is the sum of the formal charges in the molecule: 0+1+(−1)=0.
Ions' formal charge sums are ≠0.
Similar questions