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What is the shape of the molecule NH3?
- a)Square pyramidal
- b)V-shape
- c)Triagonal pyramidal
- d)Tetrahedral
Correct answer is option 'C'. Can you explain this answer?
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Shape of the molecule NH3
To determine the shape of a molecule, we need to consider the arrangement of the atoms and lone pairs around the central atom. In the case of NH3 (ammonia), the central atom is nitrogen (N), and it is surrounded by three hydrogen (H) atoms.
Lewis structure of NH3
The Lewis structure of NH3 shows that the nitrogen atom has three bonded pairs and one lone pair. The lone pair of electrons on the nitrogen atom affects the shape of the molecule.
Valence shell electron pair repulsion (VSEPR) theory
The VSEPR theory states that electron pairs in the valence shell of an atom repel each other, and the molecule adjusts its shape to minimize these repulsions and maximize stability.
Electronic geometry of NH3
The electronic geometry of NH3 is tetrahedral. The nitrogen atom has four regions of electron density - three bonding pairs and one lone pair.
Molecular geometry of NH3
The molecular geometry of NH3 is trigonal pyramidal. The lone pair of electrons on the nitrogen atom repels the bonding pairs, causing the molecule to adopt a pyramidal shape.
Explanation of trigonal pyramidal shape
In a trigonal pyramidal shape, the central atom is bonded to three other atoms and has one lone pair. The bonded atoms are arranged in a triangular fashion, with the lone pair occupying the fourth position, above or below the plane of the triangle.
In the case of NH3, the three hydrogen atoms are bonded to the nitrogen atom, and the lone pair occupies the fourth position. The lone pair occupies more space than the bonding pairs due to its repulsion with the other electrons. This causes the hydrogen atoms to be pushed closer together, resulting in a trigonal pyramidal shape.
Summary
In summary, the molecule NH3 (ammonia) has a trigonal pyramidal shape. This shape is determined by the presence of three bonding pairs and one lone pair of electrons around the central nitrogen atom. The repulsion between the lone pair and the bonding pairs causes the hydrogen atoms to be pushed closer together, resulting in a pyramidal shape.
To determine the shape of a molecule, we need to consider the arrangement of the atoms and lone pairs around the central atom. In the case of NH3 (ammonia), the central atom is nitrogen (N), and it is surrounded by three hydrogen (H) atoms.
Lewis structure of NH3
The Lewis structure of NH3 shows that the nitrogen atom has three bonded pairs and one lone pair. The lone pair of electrons on the nitrogen atom affects the shape of the molecule.
Valence shell electron pair repulsion (VSEPR) theory
The VSEPR theory states that electron pairs in the valence shell of an atom repel each other, and the molecule adjusts its shape to minimize these repulsions and maximize stability.
Electronic geometry of NH3
The electronic geometry of NH3 is tetrahedral. The nitrogen atom has four regions of electron density - three bonding pairs and one lone pair.
Molecular geometry of NH3
The molecular geometry of NH3 is trigonal pyramidal. The lone pair of electrons on the nitrogen atom repels the bonding pairs, causing the molecule to adopt a pyramidal shape.
Explanation of trigonal pyramidal shape
In a trigonal pyramidal shape, the central atom is bonded to three other atoms and has one lone pair. The bonded atoms are arranged in a triangular fashion, with the lone pair occupying the fourth position, above or below the plane of the triangle.
In the case of NH3, the three hydrogen atoms are bonded to the nitrogen atom, and the lone pair occupies the fourth position. The lone pair occupies more space than the bonding pairs due to its repulsion with the other electrons. This causes the hydrogen atoms to be pushed closer together, resulting in a trigonal pyramidal shape.
Summary
In summary, the molecule NH3 (ammonia) has a trigonal pyramidal shape. This shape is determined by the presence of three bonding pairs and one lone pair of electrons around the central nitrogen atom. The repulsion between the lone pair and the bonding pairs causes the hydrogen atoms to be pushed closer together, resulting in a pyramidal shape.
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What is the shape of the molecule NH3?a)Square pyramidalb)V-shapec)Triagonal pyramidald)TetrahedralCorrect answer is option 'C'. Can you explain this answer?
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