Hydrogen Sulfide is a typical chemical compound that is advantageous for examining inorganic link of steel ions. It has the chemical formula that H2S. The molecule has actually two Hydrogen atoms and a solitary Sulfur atom. H2S is additionally a precursor because that elemental Sulfur. It additionally plays a vital role in signaling pathways in the human body. Therefore to recognize the hybridization, polarity, and also molecular geometry the this compound, the is essential to recognize its Lewis structure.

You are watching: What is the shape of h2s

Name of moleculeHydrogen disulfide ( H2S)
No the Valence electrons in the molecule8
Hybridization that CO2sp3 hybridization
Bond Angles104.5 degrees
Molecular Geometry of CO2Bent

Before knowing its Lewis structure, let united state calculate the total variety of valence electron in Hydrogen Sulfide together these electrons take part in bond development and aid us research Lewis framework with ease. 

Valence electron of H2S

To recognize the total number of valence electron in Hydrogen Sulfide we require to add the valence electron of both Hydrogen and also Sulfur atoms. There space two atoms of Hydrogen and a single atom of Sulfur in the compound. 

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

Hence there are two valence electrons because that Hydrogen atom ( as there room two Hydrogen atoms)

Sulfur has actually six valence electrons. 

Total number of valence electron in H2S

= 2(1) + 6

= 8

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

H2S Lewis Structure

The Lewis structure of any type of compound is a structural representation of the valence electron participating in the development of bond along with the nonbonding electron pairs. Discovering the Lewis structure of a offered chemical compound is essential as it offers the crucial information around all various other chemical properties of the compound. 

The depiction is presented using dots and lines that stand for electrons. Dots stand for the electron that carry out not participate in the shortcut formation. Whereas, the lines represent the binding in the compound. The structure is made based on the Octet Rule. The Octet rule of chemistry states that there should be eight electrons in the outer shell the an facet for it to be stable.

The Lewis framework of Hydrogen Sulfide is simple to draw and also understand. In this compound, both the hydrogen atoms call for one electron to do the covalent bond through Sulfur. The Lewis framework of H2S is similar to H2S. Sulfur requirements eight electrons to fulfill the demands for Octet Rule. However Hydrogen just requires a single electron to come to be stable together it belonging to group 1 elements.


Place the Sulphur atom in the middle and arrange its valence electrons approximately it.

Now location two Hydrogen atom on both sides of the central atom.

Here the valence electron of Sulfur are provided to do Hydrogen secure by donating one electron to both the atom of Hydrogen. 2 out of six valence electrons get involved in link formation.

Draw lines ( for mirroring bonds) between Hydrogen and also Sulphur atoms. 

 The remaining four electrons space nonbonding electrons and also are hence shown as dots near the Sulfur atom. In complete there are two bag of non-bonding electron in this compound and also Hydrogen atoms have a complete valence shell. 

H2S Hybridization

To understand the hybridization the H2S, it is an essential to understand two things first:

The variety of bonds in the compound and its type

It is vital to recognize the kind of bonding in the link to understand its hybridization. In the H2S molecule, two Hydrogen atoms form a bond v the central Sulfur atom. Two single bonds are created in the molecule. These bonds take up four valence electrons, and also hence over there are four other valence electron left. While creating a shortcut the s orbit of the Hydrogen atom overlaps with p orbital of the Sulfur atom. The lone pair of electron takes up 2 of the sp3 orbitals. The various other two orbitals of sp3 overlap with 1s orbital of the Hydrogen atom.

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

The steric number of the offered compound

The steric number is characterized as the an ar of electron thickness seen approximately the central atom. In this case, together Sulfur is the main atom the steric variety of the compound will certainly be the cumulative total of atom bonded to the main atom and the number of lone bag of electrons about the central atom.

The formula for finding this number is:

Steric Number (SN)

 = No of sigma binding on the central atom +No that pi lone bag on the central atom

In this case of H2S molecules, there are two sigma bonds, and there are two lone bag of electrons on the main atom.


Thus SN that H2S molecule = 2+2


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

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

Now the we recognize the Lewis structure and also hybridization of the molecule, it is simple to determine its molecular geometry.

H2S Molecular geometry

Hybridization that the offered molecule H2S is sp3; the Sulfur atom is in facility bonding with two Hydrogen atoms creating the shortcut angle less than 180 degrees. Follow to the VSEPR theory, the lone pairs of electron repel each other, but as the Sulfur atom is less electronegative, the bond angle decreases come 104.5 degrees.

This decrease in the angle leader to a bending structure.

Another method to understand Molecular geometry is by the AXN method. Wherein A denotes the central atom, X is for the number bonded pair that electrons and also N is because that the lone pair of electrons. Right here the general formula will certainly be AX2N2 as result of two bonding pairs and two lone bag of electrons. Therefore this molecule reflects a bent geometry.

H2S Polarity

Now that we have actually the required information around the molecule, that is easy to recognize its polarity. The polarity of any given molecule depends on its molecule geometry and also the as whole electronegativity. Together the Sulfur atom is less electronegative, the all at once electronegativity that the link is much less than 0.4, which makes it nonpolar.

Thus it deserve to be claimed that the H2S molecule is nonpolar.

See more: How Many Inches In 85 Cm To Inches, 85 Cm To In Converter


Concluding remarks

From the over information, it can be concluded that the H2S molecule has eight valence electrons, sp3 hybridization, bent molecule geometry, and is nonpolar.