Hydrogen Sulfide is a usual chemical compound the is helpful for examining inorganic link of steel ions. It has the chemical formula of H2S. The molecule has two Hydrogen atoms and a single Sulfur atom. H2S is likewise a precursor for elemental Sulfur. It also plays a an important role in signaling pathways in the human body. So to understand the hybridization, polarity, and molecular geometry the this compound, the is necessary to recognize its Lewis structure.

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Name of moleculeHydrogen de defiders ( H2S)
No of Valence electron in the molecule8
Hybridization of CO2sp3 hybridization
Bond Angles104.5 degrees
Molecular Geometry the CO2Bent

Before knowing its Lewis structure, let united state calculate the total variety of valence electron in Hydrogen Sulfide together these electrons get involved in bond development and assist us study Lewis structure with ease. 

Valence electron of H2S

To recognize the total variety of valence electrons in Hydrogen Sulfide we need to add the valence electron of both Hydrogen and also Sulfur atoms. There are two atom of Hydrogen and a single atom that Sulfur in the compound. 

Each Hydrogen atom has only one electron i m sorry is likewise its valence electron 

Hence there are two valence electrons for Hydrogen atom ( together there space two Hydrogen atoms)

Sulfur has actually six valence electrons. 

Total variety of valence electrons in H2S

= 2(1) + 6

= 8

Thus, there room a full of eight valence electrons in H2S. 

H2S Lewis Structure

The Lewis structure of any kind of compound is a structural representation of the valence electron participating in the formation of bond together with the nonbonding electron pairs. Learning the Lewis structure of a provided chemical link is essential as it provides the vital information about all various other chemical properties of the compound. 

The depiction is presented using dots and also lines that represent electrons. Dots stand for the electrons that perform not get involved in the bond formation. Whereas, the lines stand for the bonds in the compound. The structure is made based on the Octet Rule. The Octet dominance of chemistry states that there must be eight electrons in the external shell of an aspect for it to be stable.

The Lewis framework of Hydrogen Sulfide is easy to draw and also understand. In this compound, both the hydrogen atoms need one electron to do the covalent bond v Sulfur. The Lewis framework of H2S is comparable to H2S. Sulfur demands eight electrons to satisfy the requirements for Octet Rule. But Hydrogen just requires a single electron to end up being stable together it belongs to team 1 elements.


Place the Sulphur atom in the middle and also arrange that is valence electrons about it.

Now ar two Hydrogen atoms on both political parties of the main atom.

Here the valence electrons of Sulfur are used to make Hydrogen steady by donating an electron to both the atoms of Hydrogen. 2 out of six valence electrons participate in bond formation.

Draw currently ( for mirroring bonds) in between Hydrogen and Sulphur atoms. 

 The remaining four electrons space nonbonding electrons and are hence presented as dots close to the Sulfur atom. In full there are two bag of non-bonding electrons in this compound and also Hydrogen atoms have actually a finish valence shell. 

H2S Hybridization

To know the hybridization that H2S, that is critical to know two points first:

The number of bonds in the compound and also its type

It is important to understand the form of bonding in the link to understand its hybridization. In the H2S molecule, two Hydrogen atoms kind a bond with the main Sulfur atom. Two solitary bonds are developed in the molecule. This bonds take it up four valence electrons, and hence there are four other valence electrons left. While creating a bond the s orbit of the Hydrogen atom overlaps v p orbital of the Sulfur atom. The lone pair of electrons takes up two of the sp3 orbitals. The various other two orbitals that sp3 overlap through 1s orbit of the Hydrogen atom.

This setup leads to the sp3 hybridization that H2S molecule. The overlapping of the two-hybrid orbitals develops two sigma bonds in between Hydrogen and Sulfur atom.

The steric variety of the offered compound

The steric number is identified as the an ar of electron density seen about the central atom. In this case, as Sulfur is the central atom the steric number of the compound will certainly be the cumulative complete of atoms bonded to the central atom and also the number of lone bag of electrons roughly the central atom.

The formula for finding this number is:

Steric Number (SN)

 = No the sigma binding on the main atom +No of pi lone pairs on the main atom

In this instance of H2S molecules, there are two sigma bonds, and also there are two lone bag of electron on the main atom.


Thus SN that H2S molecule = 2+2


As the Steric number of H2S is four, it has two 

hybrid orbitals and two lone bag of electrons the make that an sp3 hybridization.

Now that we understand the Lewis structure and also hybridization the the molecule, that is easy to identify its molecular geometry.

H2S Molecular geometry

Hybridization of the offered molecule H2S is sp3; the Sulfur atom is in center bonding with two Hydrogen atoms creating the shortcut angle less than 180 degrees. According to the VSEPR theory, the lone pairs of electrons repel every other, yet as the Sulfur atom is less electronegative, the bond angle decreases to 104.5 degrees.

This to decrease in the angle leader to a bending structure.

Another way to know Molecular geometry is by the AXN method. Whereby A denotes the main atom, X is because that the number external inspection pair that electrons and also N is because that the lone pair the electrons. Right here the basic formula will certainly be AX2N2 because of two bonding pairs and also two lone bag of electrons. For this reason this molecule shows a bent geometry.

H2S Polarity

Now that we have actually the forced information about the molecule, it is basic to identify its polarity. The polarity of any type of given molecule counts on its molecular geometry and also the as whole electronegativity. Together the Sulfur atom is less electronegative, the in its entirety electronegativity of the compound is much less than 0.4, which renders it nonpolar.

Thus it have the right to be stated that the H2S molecule is nonpolar.

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Concluding remarks

From the above information, it deserve to be concluded that the H2S molecule has actually eight valence electrons, sp3 hybridization, bent molecular geometry, and is nonpolar.