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stich3 [128]
3 years ago
9

What shape and bond angles would this molecule have in three dimensions?

Chemistry
2 answers:
Darya [45]3 years ago
5 0

Answer : The shape and bond angle of the given molecule is, bent and 120^o respectively.

Explanation :

In the given molecule, 'Y' is the central atom and 'X' is the neighboring atom. In the given molecule, there are 4 electron pairs that means the hybridization will be sp^3 and the electronic geometry of the molecule will be tetrahedral.

But as there are two atoms around the central atom, the third and fourth position will be occupied by lone pair of electrons. The repulsion between lone and bond pair of electrons is more and hence the molecular geometry will be bent or angular and the bond angle will be, 120^o.

Hence, the shape and bond angle of the given molecule is, bent and 120^o respectively.

diamong [38]3 years ago
4 0

The shape of the given molecule is \boxed{{\text{bent}}}.

The bond angle is \boxed{109^\circ }.

Further explanation

The VSEPR theory is also known as valence shell electron pair repulsion theory. This theory is used to determine the geometry of a central atom or ion. It is based on the repulsion between bond pairs and lone pairs in the valence shell of the central atom.

The {\text{A}}{{\text{X}}_{\text{m}}}{{\text{E}}_{\text{n}}} classification is used to expresses the geometry of the central atom in VSEPR theory. In {\text{A}}{{\text{X}}_{\text{m}}}{{\text{E}}_{\text{n}}} classification, A is a central atom, X is covalent bond, E is the lone pair, m is the total number of covalent bond present on central atom, and n is the total number of lone pair present on the central atom

VSEPR model is employed to predict the shape of compounds with a nonmetal as the central atom.

Bond Angle: Bond Angle is the angle between the two bonds that are attached to same central atom.

Lone Pair: It refers to a pair of valence electrons that that is not shared with another atom.

Molecular Geometry: This is the 3-D arrangement of bonded atoms in a polyatomic ion or molecule.

Electron Pair Geometry: This is the 3-D arrangement of electron pairs around the central atom of a polyatomic ion or molecule.

The main difference between molecular geometry and electron pair geometry is that molecular geometry does not include unpaired electrons, whereas electron pair geometry includes both bonded atoms and unpaired electrons.

In the Lewis structure of the given molecule, Y is the central atom and X is the neighboring atom. As there are only two atoms around the central atom, the remaining position of the central atom will be occupied by lone pair of electrons. So, there are two bond pairs and two lone pairs. The repulsion between lone and bond pairs of electrons is more and hence the molecular geometry will be bent or angular and the bond angle will be 109\;^\circ.

Hence, the shape of the given molecule is, bent and the bond angle is 109\;^\circ. ( Refer to the attached image).

Learn more:

1. Complete and balance the following equation brainly.com/question/5526988

2. Write the net ionic equation. brainly.com/question/5817505

Answer details:

Grade: Senior school

Subject: Chemistry

Chapter: Molecular structure and bonding

Keywords: vsepr, bond pair, lone pair, electron, repulsion, bent, 109, molecular geometry and YX2.

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