The molecular geometry of a water molecule (H₂O) is bent or angular, despite its electron geometry being tetrahedral. This discrepancy arises because the tetrahedral arrangement accounts for both the two hydrogen atoms and the two lone pairs of electrons on the oxygen atom. The lone pairs repel more strongly than the bonding pairs, causing the hydrogen atoms to be pushed closer together, resulting in the bent shape. Thus, while the electron geometry is tetrahedral, the molecular geometry is classified as bent.
Molecular geometry will be bent, electron geometry will be trigonal planar
In a molecule of phosphorus fluoride, the phosphorus atom is in the center, and it is surrounded by the three fluoride atoms which are arranged at three of the four points of a tetrahedron. (The fourth point of the tetrahedron contains an electron pair from the phosphorus atom.)
tetrahedron
The molecular geometry and bond angle of clone is the result of a tetrahedral electron. It is common to be called a bent molecule.
The electron-group geometry of a water molecule (H₂O) is tetrahedral because it has four regions of electron density: two bonding pairs (O-H bonds) and two lone pairs of electrons on the oxygen atom. However, the presence of the two lone pairs causes repulsion that pushes the hydrogen atoms closer together, resulting in a bent molecular geometry. This deviation from the tetrahedral arrangement gives water its characteristic angle of approximately 104.5 degrees.
The electron geometry of a water molecule is tetrahedral even though the molecular geometry is _____. Bent
Molecular geometry will be bent, electron geometry will be trigonal planar
In a molecule of phosphorus fluoride, the phosphorus atom is in the center, and it is surrounded by the three fluoride atoms which are arranged at three of the four points of a tetrahedron. (The fourth point of the tetrahedron contains an electron pair from the phosphorus atom.)
tetrahedron
The molecular geometry and bond angle of clone is the result of a tetrahedral electron. It is common to be called a bent molecule.
The molecular geometry of a nitrogen molecule is linear.
trigonal planar
Check the link, it is a sheet describing the different types of electron and molecular geometry. It helped me a lot. ^^ electron pair geometry and molecular geometry won't be the same if there are lone pairs involved.
One can predict molecular geometry by considering the number of bonding and non-bonding electron pairs around the central atom, using VSEPR theory. The arrangement of these electron pairs determines the shape of the molecule.
The molecular geometry for a molecule with two electron groups and only bonded pairs is linear.
The molecular geometry of a molecule can be determined using the VSEPR theory. VSEPR (Valence Shell Electron Pair Repulsion) Theory: The basic premise of this simple theory is that electron pairs (bonding and nonbonding) repel one another; so the electron pairs will adopt a geometry about an atom that minimizes these repulsions. Use the method below to determine the molecular geometry about an atom. Write the Lewis dot structure for the molecule. Count the number of things (atoms, groups of atoms, and lone pairs of electrons) that are directly attached to the central atom (the atom of interest) to determine the overall (electronic) geometry of the molecule. Now ignore the lone pairs of electrons to get the molecular geometry of the molecule. The molecular geometry describes the arrangement of the atoms only and not the lone pairs of electrons. If there are no lone pairs in the molecule, then the overall geometry and the molecular geometry are the same. If the overall geometry is tetrahedral, then there are three possibilities for the molecular geometry; if it is trigonal planar, there are two possibilities; and if it is linear, the molecular geometry must also be linear. The diagram below illustrates the relationship between overall (electronic) and molecular geometries. To view the geometry in greater detail, simply click on that geometry in the graphic below. Although there are many, many different geometries that molecules adopt, we are only concerned with the five shown below.
In predicting molecular geometries, unshared electron pairs and double bonds influence the overall shape of a molecule. Unshared electron pairs tend to repel bonding pairs, causing distortions in the molecular geometry. Double bonds restrict rotation around the bond axis, affecting the spatial arrangement of the surrounding atoms and leading to a fixed geometry for the molecule.