Question

Starting from Lewis structure, determine the hybridization types of the central atom of TeCl4 and ICl4^-

Answer 1

Tecl4- 6 electron on Te. The hybridization type is sp3d.
Icl4- 8 electron on I. The hybridization type is sp3d2

Answer 2

Answer : The hybridization $TeCl_4$ and $ICl_4^-$ are, $sp^3d$ and $sp^3d^2$

Explanation :

Lewis-dot structure : It shows the bonding between the atoms of a molecule and it also shows the unpaired electrons present in the molecule.

(1) The given molecule is, $TeCl_4$

As we know that tellurium has '6' valence electrons and chlorine has '7' valence electron.

Therefore, the total number of valence electrons in $TeCl_4$ = 6 + 4(7) = 34

In $TeCl_4$, one-one electron of 4 chlorine combine with 4 electrons of tellurium and 2 pair electrons of tellurium left as a lone pair. That means, it has 4 bonding pairs and 1 lone pairs. So, the hybridization will be, $sp^3d$

(2) The given molecule is, $ICl_4^-$

As we know that iodine has '7' valence electrons and chlorine has '7' valence electron.

Therefore, the total number of valence electrons in $ICl_4^-$ = 7 + 4(7) + 1 = 36

In $ICl_4^-$, one-one electron of 4 chlorine combine with 4 electrons of iodine and 4 pair electrons of iodine left as a lone pair. That means, it has 4 bonding pairs and 2 lone pairs. So, the hybridization will be, $sp^3d^2$

The Lewis-dot structure of $TeCl_4$ and $ICl_4^-$ are shown below.