NH3 Lewis Structure

Come on friends today we are going to talk about NH3 Lewis Structure. Let’s start with the compound NH3 to clarify the knowledge about the Lewis structure that needs to be described. This article will be developed with the facts given by Lewis structure of NH3.

The facts that will come out in this article are:

Drawing the Lewis Structure for NH3. 

NH3 Lewis Structure

There are some basic steps, which are followed to draw the Lewis structure of many compounds. They precisely determine the phase structure and provide knowledge about the gradual formation of a compound’s internal shape through electronic transformations.

One must first calculate the number valence electrons present in the elements of the compound Then recognizing the center atom is the regulator to develop the beginning of the drawing, The next step is to calculate the formal charge and the number of bond pairs and lone pairs in the compound to complete the drawing of ammonia’s structure. Incorporating these steps gives proper shape from sketching the structure of ammonia.

NH3 Lewis Structure Size:

The size of ammonia can be determined by drawing the NH3 Lewis structure . This reflects the formation of the compound’s internal geometry, NH3 possesses a triangular pyramidal or distorted tetrahedral molecular geometry in terms of its shape. This motif is identified with the Lewis structure because it indicates the presence of a lone pair in the nitrogen atom, which is the center atom in the compound.

NH3 Lewis Structure Formal Fee

A fundamental formula helps to identify the formal charges held by the atoms in any compound . This is an important characteristic, which is highly considered in the case of drawing the Lewis structure of any compound . The formula for finding the formal charge is (valence electron – nonbonding electron – bonding electron).

Hence the formal charge of the nitrogen atom (5-2 + (1/2)6) = 0. is

Formal charge of each hydrogen atom (1-0+ (1/2)2) = 0

The total charge of the compound becomes zero when the individual formal charges of the atoms present in ammonia are added.

NH3 Lewis structure lone pair

The presence of lone pair is also denoted by Lewis structures of compounds. Since lone pairs affect the size of compounds , it is important to identify the number of lone pairs in those compounds, The nitrogen atom in ammonia has two lone pairs because hydrogen atoms have only two electrons, which take part in forming bonding pairs. Furthermore, this lone pair has an effect on the polarity of the overall complex.

NH3 Hybridization

The hybridization of compounds also results from the Lewis structure , which indicates the internal structure of compounds, which also affects the shape of the compounds . In NH3 sp3 hybridization occurs in pyramidal or distorted tetrahedral shape. The hybridization of the nitrogen atom shows the overall hybridization of ammonia . Compounds have a combination of 2s and 2p orbitals.

NH3 Lewis Structure Resonance

In the case of resonance, the compounds must hold one or more bonds. Only sigma bonds cannot show resonance features in compounds . NH3 has no bonds in its molecular structure, which lacks resonance characteristics in ammonia. Without the presence of double bonds there is no possibility to change the bonds and structure while keeping the formula the same.

NH3 Lewis Structure Octet Rule

The octet rule states that the final energy level of compounds gives the atoms extreme stability by driving the atoms past the electron-sharing process. Elements are likely to adopt the same electronic configuration as the nearest noble gases by completing their final electron shell of the octet state.

To maintain this octet rule N and H both atoms by sharing their valence electrons with each other undergo election-sharing method . Hydrogen needs one electron to fill the octet and Nitrogen needs three electrons for this. Each hydrogen atom partially accepts an electron from the last electron shell of nitrogen. Nitrogen shares its electrons with three hydrogen atoms so that the three electrons from those hydrogen atoms are also partially adopted.

NH3 polar or non-polar

The difference between the electronegativity of the atoms participating in the formation of any compound is an important factor in finding the amount of polarity or dipole moment in compounds, NH3 is a polar compound, which is charged by the existence of dipole moment in the compound. The huge difference in electronegativity of nitrogen and hydrogen gives rise to this polar nature. The non-symmetric pyramidal shape with lone pairs in the compound is responsible for giving ammonia the high polarity.

NH3 Lewis structure bond angle

The bond angle can also be found from the Lewis structure. The bond angle of compounds is highly dependent on the size of the compounds and the location of the lone pairs . The bond angle of NH3 is 107. is o , which is only slightly less than the standard bond angles of the compounds. This bond angle is the result of lone pair–bond pair and lone pair–lone pair repulsion, expressed by molecular geometry.

NH3 Lewis Structure Electron Geometry

Electron geometry refers to the molecular geometry of compounds, originally derived from the Lewis structure of compounds, the molecular geometry of ammonia reflects its distorted tetrahedral shape or pyramidal shape with a slightly lower bond angle than the standard one . This is due to the tie presence of the lone pair. Lone-pair-lone pair repulsion gives the electron geometry of ammonia a slightly folded structure.

NH3 valence electron

Valence electrons refer to the electrons, which are present in the last electronic shell of the elements. The number of valence electrons defines the ability of periodic elements to adopt , split electrons to satisfy the octet. In NH3, the number of valence electrons on nitrogen is five and each of the three hydrogen atoms has one valence electron.


Ammonia is used in many industrial productions. It has a high demand in agriculture as a powerful fertilizer for the cultivation of crops.

What is the difference between NH4+ and NH3?

NH3 has zero charge. It is a completely neutral compound where NH4+ represents the ammonium ion which has an additional hydrogen atom beyond its potential.

Frequently Asked question

What is aqueous ammonia?

The dissolved state of ammonia gas in water is called aqueous ammonia or liquid ammonia.  

What is the Lewis structure for nh3?

The Lewis structure of ammonia, NH3, would have three hydrogen atoms bonded to a nitrogen atom in the middle, with a lone pair of electrons on top of the atom. This is why ammonia acts as a Lewis base, because it can donate those electrons.

What is the number of single bonds in the correct Lewis structure of the molecule ammonia nh3?

The Lewis structure of ammonia (NH3) consists of three N-H bonds and a lone pair on the nitrogen atom. The Lewis structure of NH 3 can be prepared starting with the valence electrons of nitrogen and hydrogen atoms in several steps.

How many valence electrons are there in nh3?

8 valence electrons

How do you determine the structure of ammonia?

Ammonia (also known as azene) is a compound with the chemical formula NH₃NH. The ammonia molecule consists of one nitrogen atom and three hydrogen atoms in a triangular pyramidal shape. A lone pair on the nitrogen atom can accept a proton to form the ammonium ion (NH).

What would be the electron dot structure of ammonia?

A point moves in such a way that its distance from the point(3, 4)The distance from the point(-3,-4)`is three times its distance.

What is the valency of NH3?

Nitrogen shows a valency of 3 in its compound ammonia (NH3).

What is the molecular weight of ammonia?

The molecular weight of Nh3 is 17.

How to make ammonium?

Ammonia is formed when a mixture of pure nitrogen and hydrogen in a 1:3 ratio is heated. It is an exothermic reversible reaction and the reaction is followed by a decrease in volume. Therefore, according to Lachteliere’s law, more ammonia is produced at lower temperature and higher pressure.

What is the boiling point of ammonia gas?

-33.34 °C

What is the chemical name of ammonia?


Ammonia is a liquid while others are hydrogen gas. Why?

Nitrogen and hydrogen have a relatively large difference in electronegativity, the nature of the covalent bond between them is polar. This is the reason why NH3 forms H-bonds between the molecules.

What is household ammonia called?

Ammonia is a colorless gas with a pungent odor. It is lighter than air. Chemical fertilizers like urea, ammonium sulphate, ammonium phosphate, ammonium nitrate etc. are used to make it. Aqueous solution of ammonia is called liqueur ammonia.

What is liquid ammonia?

Household ammonia or ammonium hydroxide is a solution of NH3 in water. The concentration of such solutions is measured in units of the Baum scale (density), with 26 °baum (about 30% (by weight) of ammonia at 15.5 °C or 59.9 °F) being the typical high concentration commercial product. It is also called “liquid”.

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