Such a molecule is trigonal but due to presence of lone pair the bond angle is less than 120 degree as HNO2 the central atom is nitrogen. O=N..-OH
It is a tetrahedral. If it has 4 single bonds, like in this case, it is sp3 hybridized and has a molecular geometry of tetrahedral.
An example is CH4.
Square-pyramidal
MB-Baylor
trigonal planar
see saw
Linear
Tetrahedral
trigonal planar
This is a linear molecule.
As with all molecule consisting of only two atoms the geometry is linear.
Ozone (O3) has a bent molecular geometry, shaped like this: ^. One of the oxygen atoms is considered to be the central atom, and the other two are considered to be terminal or outer atoms.
The atoms in a molecule are summarised by the molecular formula. The molecular formula is the identity and numbers of its constituent atoms.
The molecular geometry of this molecule is bent. Click on the related link for a Wikipedia article that contains a VSEPR table.
square planar
trigonal planar
This is a linear molecule.
As with all molecule consisting of only two atoms the geometry is linear.
Silicon Tetrafluoride has a tetrahedral molecular geometry. That means there are 4 F atoms around the central atom Si.
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.
3
Bent, like water.
Carbon has four Hydrogen atoms around it.It is in tetrahedral shape
tetrahedral
In molecular geometry, bond length refers to the distance separating nuclei of bonded atoms in a single molecule.