Oxygen difluoride is a colorless and very toxic gas through the chemistry formula OF2. The is considered very dangerous as result of its oxidizing properties.

In this article, we will talk about the Oxygen difluoride (OF2) lewis dot framework or F2O lewis structure, that is molecular and electron geometry, bond angle, hybridization, is OF2 polar or non-polar, etc.

You are watching: Draw the lewis structure for of2. what is the hybridization on the o atom?

OF2 have the right to explode if it contacts water. The is supplied as one oxidizer for propellants. The has countless names like- Difluorine monoxide, Oxydifluoride, Oxygen difluoride, etc.

Some crucial properties that OF2

It is extremely toxic through inhalation.It has actually a molar fixed of 53.99 g/mol.It has actually smelled peculiar.The boiling suggest of OF2 is −144.75 °C and the melting suggest is −223.8 °C.It is corrosive to the skin and also eyes.

OF2 deserve to be acquired by reacting fluorine with sodium hydroxide in a dilute aqueous solution.

⇒ 2F2 + 2 NaOH → OF2 + 2 NaF + H2O

Name that MoleculeOxygen difluoride
Chemical formulaOF2
Molecular geometry that OF2Bent
Electron geometry that OF2Tetrahedral
Bond angle103º
Total Valence electron for OF220
The formal charge of OF20

Page Contents display
1 how to attract Oxygen difluoride (OF2) lewis structure?
2 steps to monitor for drawing the OF2/F2O lewis structure
3 What room the electron and molecular geometry that OF2?
4 monitor three procedures to uncover OF2 molecular shape and also its electron geometry
5 Oxygen difluoride polarity: Is OF2 Polar or Non-Polar?
6 Three factors that indicate the polarity that OF2
7 What is the formal fee in OF2 and also how to calculate it?
9 review

How to attract Oxygen difluoride (OF2) lewis structure?

OF2 lewis structure has 2 fluorine and also 1 oxygen atom through 2 lone bag on the central atom and also 2 bonded bag attached come it. The lewis dot structure of OF2 is very easy to draw if you follow the straightforward approach of drawing the lewis diagram.

There is a full of 16 lone pair electrons and also 4 bonded pair electrons current in the OF2 lewis structure.

Steps to monitor for drawing the OF2/F2O lewis structure

1. Count full valence electron existing in OF2

In the first step, you require to discover how countless valence electrons are present in the OF2 molecule. Together oxygen belongs to the 16th group in the regular table and also fluorine is in the 17th group. 

⇒ Oxygen valence electron = 6

⇒ Fluorine valence electron = 7

∴ total valence electrons accessible for illustration the OF2 lewis structure = 6 + 7(2) = 20 valence electrons  <∴ OF2 molecule includes one oxygen and also two fluorine>


2. Uncover the the very least electronegative atom in OF2

After finding total valence electrons, we require to discover the least electronegative because that placing them in ~ the center of the F2O lewis structure.

As electronegativity boost from left to best in the periodic table. So, oxygen is at the left and fluorine at the right in the periodic table. Hence, oxygen is less electronegative 보다 a fluorine atoms.

Place Oxygen in ~ the center in the lewis diagram and also fluorine spaced evenly roughly it.


3. Attach oxygen and also fluorine through a single bond

Now in this step, we will start to draw the Lewis structure of F2O by simply affix a fluorine atom with a main atom through a single bond.

By looking in ~ the over structure, we check out 2 single bonds space used. It method we provided 4 electron from a total of 20 valence electrons accessible for illustration the lewis structure of OF2.

∴ (20 – 4) = 16 valence electrons

Now we space left with 16 much more valence electrons.

4. Ar remaining valence electrons starting from the external atom first

As we have actually a total of 16 valence electrons more and we require to finish the octet dominion of atoms in this step. Begin with the outer atom first.

Fluorine needs 8 electron to finish its octet rule however it already shares 2 electrons v a single bond. So, the only needs 6 much more electrons to fulfill its octet rule.

Place 6 electrons around each fluorine atom in the 3rd step structure.


After placing 6 electrons around each fluorine atom we left through 4 valence electrons. We need to use these 4 valence electron to satisfy the octet for the main atom.

Let’s view in the following step.

5. Complete main atom octet and make covalent link if necessary

Oxygen demands 8 electron to complete its octet rule however it already shares 4 electrons v the aid of 2 solitary bonds connected with fluorine atoms.

And we have 4 valence electron more. So, place these electrons roughly oxygen and fulfill that octet.


Lewis dot structure for OF2

So, we provided all 20 valence electrons, and also all atoms in the OF2 lewis structure are likewise happy due to the fact that they completed your octet rule.

No must make any covalent bond as we acquired our ideal lewis dot structure for OF2 (Oxygen difluoride).

What room the electron and also molecular geometry the OF2?

The molecular geometry the OF2 is bent and its electron geometry is tetrahedral because the presence of two lone pairs on the main atom creates repulsion v bonded pairs of electrons, together a result, all outer atoms(fluorine) pushes under in bespeak to minimization the repulsion follow to the VSEPR theory, and also that makes its form look bent.


Also, the visibility of three lone on each fluorine atom repels one an additional that makes its shortcut angle somewhat wider.

Lewis dot framework of OF2 plays an important role to recognize the geometry that it since it helps to find how countless bond pair and lone pair electrons OF2 molecule contains.

Follow three steps to uncover OF2 molecule shape and also its electron geometry

1. Find the variety of lone pairs current on the central atom of the OF2 lewis structure

According to the OF2 lewis structure, the lone pair top top Oxygen is two.

Or find lone pair by making use of the formula.

∴ L.P = (V.E. – N.A.)/2

where L.P. = Lone pair top top the main atom

V.E. = valence electron that that central atom

N.A. = number of atoms attached to that main atom

∴ Hence, Oxygen is the main atom that has actually 6 valence electrons and two Fluorine atom that space attached to it.

Put these values in lone pair formula-

∴ L.P. = (6 – 2)/2

= 2 Hence, OF2 main atom has 2 lone pairs on it.

2. Find hybridization variety of OF2

Now uncover the hybridization variety of OF2 to additional determine its molecular and electron geometry.

Use this Formula to find the Hybridization number.

∴ H = N.A. + L.P.

where H = hybridization number

N.A. = number of atoms attached to the central atom

L.P. = lone pairs on that main atom

Hence as we see in one OF2 lewis structure, the lone pair ~ above the main atom(Oxygen) is two, and also the variety of atoms attached to it is likewise two(Fluorine atom).

Put these worths in the provided hybridization formula.

∴ H = 2 + 2

= 4 is the hybridization number of the OF2 molecules.

So, the hybridization of OF2 is Sp³.

3. Usage VSEPR theory or AXN an approach to determine OF2 molecular/electron geometry

As hybridization of OF2 is Sp³ and also lone pair on central atom is two.

∴ follow to Valence shell electron pair repulsion theory or its chart if the molecule has Sp³ hybridization and 2 lone pair the electrons, then the form of the molecule is bent, and also the electron geometry is tetrahedral.


Oxygen difluoride (OF2) molecular geometry

You can use the AXN method also to determine the molecular and electron geometry that OF2.

A to represent the main atom.X represents the bonded bag of electron to the main atom.N represents the lone bag of electron on the main atom

So, according come the lewis dot framework of OF2, oxygen is the central atom and it has 2 bonded pair electrons and also 2 lone pairs of electrons.

∴ OF2 formula becomes AX2N2.

According to the VSEPR chart, the molecule which has the AX2N2 formula their molecular shape is bent and also electron geometry is tetrahedral.

Bonded atomsLone pairGeneric formulaHybridizationMolecular geometryElectron geometry
30AX3Sp²Trigonal planarTrigonal planar
21AX2NSp²BentTrigonal planar
12AXN2Sp²LinearTrigonal planar
31AX3NSp³Trigonal pyramidTetrahedral


The bond angle of OF2 is 103º due to the fact that two lone pairs on the central atom (Fluorine) to decrease the worth bond angle of OF2 indigenous its typical value.

As we understand OF2 structure is comparable to H2O and also H2O is a polar molecule. So, is OF2 likewise polar? For understanding the answer we will consider three-factor which will assist to identify is OF2 polar or non-polar?

Three components that indicate the polarity that OF2

1. Electronegativity: 

Electronegativity is the topmost variable to recognize the polarity of any molecule. Better the difference in between the electronegativity of atoms greater is the polarity of that molecule.

So, in the situation of OF2, the electronegativity of fluorine is 4 and also for oxygen, the is 3.5. And also the difference between the electronegativity the Oxygen and fluorine is 0.5.

Always remember if the distinction of electronegativity between the atom is higher than 0.4, the molecule is said to it is in polar.

So, OF2 has actually an electronegativity distinction of much more than 0.5. For this reason OF2 is polar in nature.

2. Geometrical or molecule shape:

This is a quick means to identify whether OF2 is polar or non-polar. By acquisition the aid of OF2 lewis structure and VSEPR concept we recognize OF2 molecular form is Bent and also its electron geometry is tetrahedral.

As oxygen which is the central atom in Oxygen difluoride lewis framework contain 2 lone pair on it which do its molecular shape look favor bent or asymmetrical structure.

Hence non-symmetrical structure has actually some dipole moment which causes the molecule(OF2) to become polar.

3. Dipole moment

Dipole moment procedures the toughness of polarity in OF2. The net dipole moment of OF2 is 0.3D.

The bigger the electronegativity distinctions of atoms higher is the polarity and dipole moment.

As fluorine is more electronegative than oxygen, for this reason it attracts more electrons towards it i beg your pardon induces a an unfavorable charge on the Fluorine atom and also a confident charge ~ above the Oxygen atom.

Because of hopeful and an adverse charge root cause in the OF2 molecule, that creates two dipoles that can’t be canceled out because the molecular shape of OF2 is bent.

Hence it creates part dipole moment in the O-F bond which causes to the OF2 becomes polar in nature.

Hence every these determinants show why OF2 is a polar molecule.

What is the formal charge in OF2 and also how to calculation it?

The formal charge of OF2 reflects whether an atom has actually a much more negative fee or confident charge linked with it.

Formal charge = (Valence electron – unbonded electrons – 1/2 bonded electrons)

By taking the help of the OF2 lewis’s structure, we have the right to easily discover its formal charge.

We will calculate the formal charge on the Oxygen atom because it is the main atom.

⇒ Valence electron of Oxygen = 6

⇒ Non-bonding electrons = 4

⇒ Bonding electrons = 4

∴ 6 – 4 – 4/2

= 0

Hence, zero is the formal charge on Oxygen in OF2 lewis period structure.


How plenty of lone pairs and bonded pairs are current in the lewis dot framework of OF2?

According come OF2 lewis period structure, 2 lone pair which contain four electrons present on Oxygen main atom and two bonded pair which is attached come the fluorine atom.

Why the molecule geometry that OF2 is bent and electron geometry is tetrahedral?

Because electron geometry considers every electrons as well lone pairs to recognize the shape of OF2. However molecular geometry just considers atom of the molecule.

Hence, the electron geometry of OF2 is tetrahedral and also molecular geometry is bent according to the VSEPR chart together we currently discussed.

Are OF2 and also F2O lewis structure is different?

No, the lewis framework of F2O and OF2 is the same because they space the same chemical formula of Oxygen difluoride.

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Now we are about to finish our object OF2 lewis structure and also its geometry/shape by taking a rapid overview that what we have learned in this article.