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.
tetrahedron
tetrahedron
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.)
The molecular geometry is octahedral.
The molecular geometry of C2H2Br2 is trigonal planar.The molecular geometry of C2H2Br2 is trigonal planar.
tetrahedron
tetrahedron
The geometry of Methane (CH4) is tetrahedron or tetrahedral
Iodine Fluoride
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.)
The molecular geometry is octahedral.
The molecular geometry of C2H2Br2 is trigonal planar.The molecular geometry of C2H2Br2 is trigonal planar.
The molecular geometry of secl2 is BENT.
The molecular geometry of HClO is bent.
The molecular geometry of N2O2 is linear.
In molecular geometry, pyramidal shapes have a central atom with three bonded atoms and one lone pair, giving it a pyramid-like structure. Tetrahedral shapes have a central atom with four bonded atoms, forming a symmetrical tetrahedron.
The first mention of a tetrahedron occurred in 300 B.C. Euclid mentions the tetrahedron in his book titled The Elements of Geometry.