The Valence Shell Electron Pair Repulsion (VSEPR) Theory

Give an account of VSEPR theory and its applications.

How do you predict the shape of the following molecule making use of VSEPR theory?

${{\mathrm{ICl}}_4}^{-}$

How do you predict the shape of the following molecule making use of VSEPR theory?

${\mathrm{ClF}}_3$

How do you predict the shape of the following molecule making use of VSEPR theory?

${\mathrm{BrF}}_5$

How do you predict the shape of the following molecule making use of VSEPR theory?

${\mathrm{XeF}}_4$

What is the best possible arrangement for four bond pairs in the valence shell of an atom to minimise repulsions?