Question

use vsepr theory to predict the molecular geometry of the molecule cbr₄. 1. linear 2. trigonal - bipyramidal 3. tetrahedral 4. octahedral 5. none of these 6. trigonal - planar 7. trigonal - pyramidal 8. bent or angular

Explanation:

Step1: Determine the central atom

The central atom in $CBr_4$ is carbon (C).

Step2: Calculate the number of valence - electron pairs around the central atom

Carbon has 4 valence electrons, and each bromine (Br) atom contributes 1 electron for bonding. So the number of bonding - electron pairs around C is 4, and there are 0 lone - electron pairs. The total number of electron - pair groups around the central atom is 4.

Step3: Apply VSEPR theory

According to VSEPR theory, when the central atom has 4 bonding - electron pairs and 0 lone - electron pairs, the molecular geometry is tetrahedral.

Answer:

1. tetrahedral