Why does Xenon Tetrachloride have a specified shape?

i'm doing a molecular model project in my honors chem class.

if you could help me out i'd appreciate it very much:)

it says:

use concepts behind VSEPR to briefly explain why your molecule has a specified shape.



oh and while were at it, does anyone know what the difference between xenon tetrachloride and xenon tetrafluoride are? because they seem pretty similar but i might be wrong..

thanks again!Why does Xenon Tetrachloride have a specified shape?
Xenon tetrafluoride is square planar because it fills its d-orbitals on the axes. You may notice that XeF2 is linear and XeF6 is octahedral, all of which are aligned on the axes. XeCl compounds will exhibit the same properties as the fluoride compounds. As for bond angles, they'll only be 90 or 180 because of the axes filling like I mentioned before.