![]() ![]() Vedantu is the first choice of students aspiring to score full marks in their ICSE and CBSE Board exams or to crack any competitive exam like IIT JEE (Mains & Advanced), Kishore Vaigyanik Protsahan Yojana (KVPY), National Talent Search Exam (NTSE), International Math Olympiad (IMO), International English Olympiad (IEO). Interactive approach establishes a well-deserved academic connect between you and Master Teachers. Sessions get recorded for you to access for quick revision later, just by a quick login to your account. Your academic progress report is shared during the Parents Teachers Meeting. Assignments, Regular Homeworks, Subjective & Objective Tests promote your regular practice of the topics. Revision notes and formula sheets are shared with you, for grasping the toughest concepts. WAVE platform encourages your Online engagement with the Master Teachers. We provide you year-long structured coaching classes for CBSE and ICSE Board & JEE and NEET entrance exam preparation at affordable tuition fees, with an exclusive session for clearing doubts, ensuring that neither you nor the topics remain unattended. We have grown leaps and bounds to be the best Online Tuition Website in India with immensely talented Vedantu Master Teachers, from the most reputed institutions. Vedantu LIVE Online Master Classes is an incredibly personalized tutoring platform for you, while you are staying at your home. Hence, TeCl 4 shows seesaw molecular geometry. Because it resembles a seesaw, TeCl 4 is considered to be in a seesaw shape. Te is sp 3 d hybridized in the molecule TeCl 4 and has four coordination numbers due to its four bonds with chlorine. The core element is tellurium, with four chlorine atoms attached to it. Tellurium tetrachloride, or TeCl 4, is an example of a seesaw-shaped molecule. Seesaw appearance in molecular geometry is due to a lone pair of electrons on the central atom. A molecule with seesaw molecular geometry has a bond angle of less than 90° and 120°. When a lone pair is added, it is placed as far away as possible from the bonding pairs due to electron-electron repulsion. In Seesaw molecular geometry where there are four bonds attached to a central atom and one lone pair. When all of these regions are bonding, the molecule has a 120-degree in trigonal shape and 90-degree angles between the two atoms that make up the "bipyramidal" part of the shape. The seesaw shape has 5 electron density regions (trigonal bipyramidal), with four bonding pairs and one lone pair. Four atoms are bonded with the central atom by sigma bonds. The above image shows the tetrahedral geometry of the molecule which has a bond angle of 109.5 degrees. A single pair of electrons on the central atom causes this shape. However, in the seesaw model, the central atom is surrounded by four adjacent atoms, two of which are on the same plane (axial) and two of which are below (equatorial) with a lone pair. A trigonal pyramid is formed when a central atom is attached to five different atoms out of which two are bonded axially and three equatorially with no lone pair. Seesaw-shaped molecules are much rarer than trigonal bi-pyramidal and tetrahedral molecules. ![]() This shape got its name because the Bond is observed in the shape of a playground seesaw. In this type of molecular geometry, the central atom has four bonding groups and one lone pair of electrons on it. Seesaw is one of the molecular geometries of an atom. There are many molecular geometries based on the arrangement of atoms. It contains all the geometric parameters which determine the overall shape of the molecule, as well as bond lengths, bond angles, torsional angles, and any other geometrical properties that govern the position of each atom. ![]() Molecular geometry helps in understanding the shape of the molecule by the three-dimensional arrangement of the atoms that make up a molecule. The valence-shell electron-pair repulsion (VSEPR) theory is used to determine the molecular geometry and the electron-group geometry. The second is to determine the electron geometry from the Lewis dot structure and lastly to determine the molecular geometry. The first is to know the Lewis dot structure of the compound which helps in to identify the bond pairs and the lone pairs. There are three steps that help in determining the shapes of molecules. ![]()
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