Sulfur dioxide molecule consists of one sulfur atom and also two oxygen atoms. We will certainly construct the lewis framework of SO2 molecule by following VSEPR theory rules and also considering stability of intermediate structures. After obtaining the lewis framework of SO2, we have the right to determine the hybridization of atoms.

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Sulfur dioxide | SO2

Sulfur dioxide is a colourless inorganic gas and likewise a toxic gas. It provides a weak mountain solution as soon as dissolves in water. This gas is produced due to combustion of petroleum fuel in automobiles and industrial factories.

Lewis structure of SO2

There room two double bonds between sulfur atom and also oxygen atoms in so molecule. Also, a lone pair exist on sulfur atom and each oxygen atom has two lone pairs in SO2 lewis structure.


Hybridization of SO2

All atoms have actually sp2 hybridization. Each oxygen atom has actually one sigma bond and two lone pairs. Therefore, oxygen atoms" hybridization have to be sp2. For sulfur atom, there room two sigma bonds and also one lone pair to make hybridization sp2.

Simple method to determine the hybridization of atom in covalent compounds

Apply VSEPR concept - measures of drawing lewis framework of SO2

Following steps are offered to attract the lewis framework of SO2. Each action is defined in detail in following sections. If you are a beginner to lewis structure drawing, follow this sections slowly and also properly to understand it completely. Look the figures to understand each step.

uncover total number of electrons of the valance shells
that sulfur and also oxygen atoms full electrons pairs facility atom choice Put lone pairs on atoms check the stability and minimize fees on atoms by convert lone bag to bond until most stable structure is obtained.

Total variety of electrons the the valance shells of ethene

Both sulfur and oxygen belongs to the group VIA aspects series. Therefore, they have actually six electron in your valence shell. Come find number of valence electron, this valence electrons of each facet should be multiplied v their respective number of atoms in the molecule. Below, the step room done.

complete valence electrons offered by 2 oxygen atom = 6 * 2 = 12
complete valence electrons offered by sulfur atom = 6 * 1 = 6

There are no dues in SO2 molecule. Therefore, no enhancement or reduction of valence electrons due to charges.

full valence electron = 12 + 6 = 18

Total valence electrons pairs

Total valance electrons pairs = σ binding + π binding + lone pairs at valence shells

Total electron pairs are figured out by splitting the number full valence electron by two. For, SO2 molecule, Total variety of pairs the electrons space 9.

Center atom and also sketch the ethene molecule

There room some needs to it is in the facility atom. Having a high valence is a main requirement to be a center atom. Because that SO2 molecule, sulfur has the greatest valence than and also oxygen.


Mark lone pairs on atoms

After drawing the sketch, we need to start to mark lone bag on atoms. In the attracted sketch, there are two bonds. In between atoms.

over there are currently two S-O bonds in the above sketch. Now, there are only seven (9-2 = 7) valence electron pairs
are staying to draw (as note lone pairs) the remainder of the structure. First, note remaining valence electrons pair together a lone pairs on oxygen atoms (outside atoms). Six valence electron pairs are marked on 2 oxygen atoms. Now, there are still one valence electron pair is remaining. The is significant on sulfur atom as the lone pair. Now, all valence electron bag are marked as bonds and lone bag in the sketch.

Charges top top atoms

Charges on atom are important to find the many stable structure. Therefore, we require to find the most stable structure to attain lewis structure. Therefore, we should shot to find charges if there are.

After, marking electron bag on atoms, us should mark charges of each atom. Each oxygen atoms will gain a -1 charge and sulfur atom gain a +2 charge. Because SO2 is a neutral molecule, all at once charge of the molecule have to be zero. The overall charge the the molecule is, (-1) * 2 + (+2) = 0.


Stability of structure and also minimize charges on atom by convert lone pairs to bonds

When there are hopeful and an adverse charges on lot of atoms or greater charges (like +2, +3, -2, -3) on atom in an ion or molecule, that structure is no stable. Therefore, us should shot to reduce charges on atom if the is a possible. In thee over structure, there space charges ~ above oxygen atoms and sulfur atom. Now, we room going to reduce charges on this atoms together below.

Now, us should try to minimization charges by converting a lone pair or bag to a bond. So transform a lone pair ~ above a oxygen atom to do a brand-new S-O bond
v sulfur atom together the adhering to figure. currently there is a dual bond between one oxygen atom and sulfur atom. You deserve to see, dues are lessened now in the brand-new structure. Because, there are still dues on atoms, we can try to convert a lone pair come a bond. So, transform a lone pair on other oxygen atom to make a bond v sulfur atom. With that, there room no fees on sulfur and oxygen atoms. Therfore, that structure should be the lewis structure of SO2


How countless lone pairs sulfur has actually in SO2

There is just one lone pair on valence shell of sulfur atom.

SO2 lewis structure lone pairs

There room lone bag on all atoms in SO2. Sulfur atom has one lone pair and also each oxygen atom has actually two lone pairs. Therefore, over there are complete of 5 lone pairs on last shells of every atom in SO2.

What room the other comparable lewis frameworks of SO2?

If we take into consideration the shape of SO2, water, nitrogen dioxide, hydrogen sulfide, ozone have similar shape, bent. Also, if number of sigma bonds room is considered, water, nitrogen dioxide, hydrogen sulfide, sulfur dioxide all have actually two sigma bonds. Both SO2 and also ozone has actually one lone pair on thei facility atom.

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Are there similarities in SO2 and NO2 lewis structures?

Actually, this inquiry is monster one. Fairly than pointing out similarities, it"s an excellent to discuss their differences. In NO2 lewis structure, there is an unpaired electron top top nitrogen atom.

What space the similarities and also differences in SO2 and also SO3 lewis structures?

around sulfur atom, summation the lone pair and sigma binding is three in both SO2 and also SO3. Therefore, sulfur atom has actually sp2 hybridization. But, shapes around sulfur atom in SO2 and also SO3 are different. In SO2, shape about sulfur atom is bent. But in SO3, form is trigonal planar. Ask your chemistry questions and find the answers related Tutorials