Draw the structure of chlorine pentafluoride (ClF5) according to the VSEPR theory

The molecule is uncharged, so we can find that chlorine is in its +5 oxidation state. Since there are 5 Cl-F bonds, there are 5 bonding electron pairs around the central Cl atom. We also know that chlorine is in group 7, so it has 7 valence electrons. 5 out of those seven are "tied up" in the Cl-F bonds, thus the remaining two must form a non-bonding electron pair. We have 6 electron pairs (5 bonding and 1 non-bonding) to arrange around the chlorine center - which suggests an octahedral shape. However, since we have one electron pair, the shape of the molecule will be pyramidal.

PS

Related Chemistry A Level answers

All answers ▸

Explain, in the context of catalysis, the term heterogeneous and describe the first stage in the mechanism of this type of catalysis.


Why does an ionic compound (e.g. NaCl) conduct electricity when molten or dissolved in water, but not when it is a solid.


How does the ionisation energy differ across period 2 from Li to Ne?


Draw the shape of an SF6 and SF4 molecule, indicating bond angles and any lone pairs which may influence these. What shape is the SF6 molecule?