tetrahederal
linear
180°
trigonal planar
The electron geometry of CO(NH2)2, commonly known as urea, is tetrahedral. This is due to the central carbon atom being bonded to one oxygen atom and two amine (NH2) groups, along with a lone pair of electrons. The presence of the lone pair affects the spatial arrangement, but the overall geometry remains tetrahedral with respect to the electron domains around the carbon atom.
Anything with six electron groups, keep in mind an electron group is a bonded atom or an electron pair, is an octahedral. Anything in an octahedral and a lone pair is the square pyramidal geometry. So all angles between the atoms are a little less than 90 degrees and the angle of the electron pair is greater than 90.
The electron geometry is tetrahedral when there are 4 electron groups around the central atom. This means the electron groups are arranged in a 3D shape resembling a pyramid with a triangular base.
Electron geometry for this is tetrahedral. There are two O-F single bonds, which makes 2 electron groups. There are two lone pairs around oxygen, which make up the last two electron groups. Molecules with four electron groups has a tetrahedral Electron geometry.
linear
three dimensional arrangement of atoms electron-group geometry
180°
There are two electron groups around the central sulfur atom in H2S. This gives H2S a bent molecular geometry.
electron-group geometry
The spatial arrangement of electron groups around the central atom is called molecular geometry. It describes the three-dimensional arrangement of atoms in a molecule.
To determine the structural geometry of a molecule, structural pair geometry must be used. These are the amounts of pairs found surrounding a specific molecule, and they are unique to each type of atom.
109.5
The molecular geometry of CH3OH (methanol) is tetrahedral. The carbon atom is at the center of the molecule with four electron groups around it - three hydrogen atoms and one hydroxyl group. The shape is distorted slightly due to the lone pairs on the oxygen atom.
The electron geometry of NCl3 is trigonal pyramidal (four electron groups around the central nitrogen atom). The molecular geometry of NCl3 is also trigonal pyramidal, as the three chlorine atoms and lone pair of electrons repel each other to form this shape.