Chemical structure of xenon heptafluoride anion When $\ce{XeF6}$ acts as a fluoride acceptor, $\ce{XeF7-}$ is formed. What is the hybridisation, geometry, and shape of $\ce{XeF7-}$?
About the geometry and shape:



Source: Housecroft, Sharpe, Inorganic Chemistry, Pearson Education Limited, 2005