Iodiine atom, in the third excited state, reacts with  fluorine to form a compound ‘x’. The formula and shape of ‘x’ are

In third excited state, Iodine has the outermost configuration : ns1np3 nd3 , in its velence shell it has 7 unpaired electrons.Thus it forms IF7.  Its hybridisation is sp3d3 .Shape is pentagonal bipyramidal.