The central Xe atom in the XeF4 molecule has unbonded electron pair(s) and bonded electron pair(s) in its valence shell.

XeF4 has two unbounded pairs of electrons and four bonded pairs of electrons on its valence shell

Explanation:

XeF4 is a square planar compound with Xe-F distance of about 1.95 angstroms. The compound has six electron pair domains on its outermost shell. Four bond pairs occupy four corners of a square to give a square planar geometry while two electron pairs are found above and below the plane of the square.

Hence the molecule is square planar.

a 20-cm-long, cylindrical graphite (pure carbon) rod is inserted into an oxidizing atmosphere at 1145 k and 1.013 x 105 pa pressure. the oxidizing process is limited by the diffu- sion of oxygen counterflow to the carbon monoxide that is formed on the cylindrical surface.