Dicuss the shape of the following molecules using the VSEPR model:
`AsF_(5)`

Explanation

`AsF_(5)`: In this molecule, As is the central atom `(1s^(2), 2s^(2), 2p^(6), 3s^(2), 3p^(6), 3d^(10), 4s^(2), 4p^(3))`. It has five valence electrons. Thus, it has only five bond pairs and no lone pairs. It shares its 5 valence electrons with each of the five fluorine atoms, thus molecule acquires a trigonal bipyramidal shape. It has arsenic at the centre which is covalently bonded to the five fluorine (2F at axial and 3F at equatorial positions) atoms of a trigonal bipyramid. The bond angle is `90^(@) and 120^(@)`