Here is a great page for you. For TeBr4 look at the SF4 molecule in the table. For Octahedral, look for the SF6 molecule.
http://en.wikipedia.org/wiki/Molecular_geometry
Predict the formal bond angles about the central atom for the following molecules: TeBr4
Express your answers using three significant figures separated by a comma.
What are the bond angles for an octahedral structure and how many?
3 answers
How do you figure out the number of bond angles for an octahedral? It's more than one answer?
It's listed in the site I gave you.