N2S Structure & Characteristics (13 Complete Facts)

Dinitrogen sulfide or N2S is an intermediate compound in chemistry. Let us study more facts about N2S in detail.

Dinitrogen sulfide’s simplest chemical formula is N2S. Dinitrogen-N-sulfide has a molecular weight of 60.08 g/mol.

Let us discuss some other characteristics like hybridization, valence electrons, lone pairs, structure and bond angle in the case of N2S in more detail below.

How to draw N2S structure?

Each atom’s position within a molecule is indicated by its chemical symbol in Lewis structures. Let us draw the step of the lewis structure of N2S.

Count the valence electron in N2S:

N2S has a total of 16 valence electrons. Nitrogen has 5 valence electrons (2s22p3), whereas S has 6 (3s23p4). The valence electrons total is 16 (5*2 + 6).

Select the central atom in N2S:

In this, nitrogen is the main atom. Because nitrogen has a higher electronegativity than sulphur but is smaller in size. The electronegativity of N is 3.0, while that of S is 2.5, according to the periodic table. Sulfur and nitrogen atoms make up the surrounding environment.

Draw a skeletal structure made up only of single bonds:

Atoms will share 4 of the 16 available electrons in pairs. 12 valence electrons out of 16 need to be dispersed. In contrast to the octet of sulphur, which has 6 valence electrons, the octet of nitrogen, which has 5 valence electrons, only needs 2 more electrons.

Complete the octet of N2S:

S contains one bond, 3 lone pairs, and in this case, (1 + 3)*2 = 8, hence its octet is finished. N contains 4 bonds, therefore (4*2=8), making an octet. N possesses 3 bonds and 1 lone pair. Because ((3+1)*2 = 8), the octet is finished.

Draw the final N2S lewis structure:

It is an intermediate compound and its appearance is for very less time. It can resonate in two structures. The final N2S lewis structure is shown below:

n2s  structure
N2S lewis structure

N2S structure formal charge

Charge applied to atoms in Lewis structures assuming shared electrons are evenly distributed among bound atoms. Let us calculate N2S formal charge.

On the  N2S, there are 0 formal charges. By utilising the following formula, the formal charge can be observed: F.C = V – (L + S/2) = V – (L + B)

The following is a formal charge table for N2S:

Atoms involved
in N2S
Valence
Electrons
(V)
Lone pair
Electrons
(L)
Shared
Electrons
(S) 
Formal 
charge
(F.C)
Central Atom
(N)
508/2(5- 0- 8/2)
=1
Outer Atom 
(S)
644/2(6- 4- 4/2)
=0
Terminal 
Nitrogen 
Atom
(N)
544/2(5-4-4/2)
=-1
Formal charges on the N2S are as follows: N=1, -1, S=0, and N2S=0

N2S valence electrons

An electron that is part of the outer shell of an atom and can contribute to the formation of a chemical bond is called a valence electron. Let us determine the N2S valence electrons.

The valence electron count in N2S is 16 in total. Nitrogen and sulphur are located in groups 15 and 16, respectively, of the periodic table.

The valence electron is shown in detail in the following table:

Atoms involved 
in N2S
Valence
Electrons
(V.E)
Electronic
configuration 
of atoms
Total valence 
electrons
Central Atom
(N)
51s22s22p35*2
=10
Outer Atom 
(S)
61s22s22p6 3s23p46*1
=6
 Total valence electron in N2S =16

N2S structure lone pairs

As the name suggests, a lone pair of electrons is a pair of valence electrons that are not shared by another atom in a covalent bond. Let us find out how many lone pairs are in N2S.

N2S has (1 + 3) = 4 lone pairs. This is because 1 lone pair exists on the terminal triple-bonded nitrogen atom, and 3 exist on the single-bonded sulphur atom.

N2S hybridization

Molecular orbitals, formed by combining two atomic orbitals, redistribute an atom’s orbital energy. Let us check hybridisation in N2S.

The molecule N2S is Sp hybridised. In this case, the triple bond between the terminal nitrogen and another nitrogen results in the sp hybridization of N2S. The following nitrogen is identical. 

  • They are Sp3 hybridised because there is just one bond between the sulphur and nitrogen atoms. 
  • Any molecule’s hybridization can be determined using the formula below:
  • H = ½ {V+M-C+A}.
  • In N2S H=2, so it is sp hybridized.

N2S structure shape

Color, reactivity, and biological activity are affected by molecule shape. Let us look at the shape of N2S.

N2S is linear in structure. This is because the VSEPR chart can be used to establish Molecular structure or shape. N2S is a molecule of the AX2 type class.

N2S structure angle

Known as bond angles, these are the angles formed by neighbouring lines. Let us find out the angle between N2S. 

N2S has a 180-degree bond angle. This is because of its linear (N-N-S) structure and Sp hybridization.

N2S solubility

An ingredient at a certain temperature will dissolve in the most amount of solvent. Let us check the solubility of N2S.

N2S is less soluble in water because of its less existence. 

Is N2S solid or liquid?

There is no regular arrangement of liquids next to one another but solids are regularly arranged and closely packed. Let us check whether N2S is solid or not.

N2S is a solid but not stable compound. This is because its distance between N-N is 1.139 Å  and a 1.578 Å N-S distance was calculated. Theoretical bond lengths of 1.13 and 1.63 were obtained for N-N, making N-N-S the lowest energy isomer respectively from N to S.

Is N2S polar or nonpolar?

Determine if molecules are polar or nonpolar by looking at the electronegativities of the associated atoms. Let us find out whether N2S is polar or not.

N2S is a highly polar molecule because the centre nitrogen atom (+1) is positively charged, whereas the sulphur atom (-1) is negatively charged. The electronegativity difference between N and S is 0.5. This makes them polar covalent.

Is N2S acidic or basic?

The pH readings under 7 indicate acidity, whereas readings above 7 suggest base. Let us find out whether N2S is acidic or not.

N2S is neither acidic nor basic it is neutral. This is because it has properties like N2O that do not react with acid or base.

Is N2S electrolyte?

An ion-forming chemical that transmits electricity by separating into positively and negatively charged particles (ions). Let us find out whether N2S is an electrolyte or not.

N2S does not behave as an electrolyte because of its covalent character.

Is N2S ionic or covalent?

A substance with covalent connections connecting its atoms is said to be covalent. Let us find out whether N2S is ionic or covalent.

N2S is a binary covalent compound. The factor that makes it covalent is the electronegativity difference which is 0.5. The ionic compound should have a difference in their electronegativity is around 1.6. 

Conclusion

Dinitrogen-N-Sulfide, often known as N2S, is a compound with 16 total valence electrons and a molecular weight of 60.08 g/mol. N2S has a linear form. N2S is a binary covalent substance and a very polar molecule. It has Sp hybridization.

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