The Lewis diagram for TeCl4 (Tellurium tetrachloride) consists of a central Tellurium atom bonded to four Chlorine atoms, each represented by a single line. The Tellurium atom also has two lone pairs of electrons.
To determine the number of valence electrons in TeCl4, you can refer to the periodic table. Tellurium is in group 16, so it has 6 valence electrons. Each Chlorine atom contributes 7 valence electrons, giving a total of 28 valence electrons for TeCl4.
The molecular geometry of TeCl4 is tetrahedral. This means the four Chlorine atoms are arranged symmetrically around the central Tellurium atom, with a bond angle of 109.5 degrees.
The central Tellurium atom in TeCl4 has sp3 hybridization. This means it has four electron domains, including the four bonding pairs with Chlorine atoms and two lone pairs, resulting in a tetrahedral molecular geometry.
TeCl4 is a nonpolar molecule. Although the bonds between Tellurium and Chlorine are polar, the molecule as a whole is symmetrical, resulting in a cancellation of dipole moments and an overall nonpolar molecule.