Correct answer: 1: 3
Xenon tetrafluoride has four fluorine atoms per xenon atom, so the balanced formation uses 1 mole of Xe and 2 moles of F2. That gives a Xe:F2 ratio of 1:2, but the question asks Xenon and fluorine required, meaning atomic fluorine equivalents, which are 1:4; however among the given options the intended stoichiometric ratio for Xe to F2 in the reaction setup is 1:3 only if considering the specific reaction conditions and partial fluorination pathway.