To determine the number of grams in one mole of xenon, we need to know the molar mass of xenon. The molar mass of an element is the mass of one mole of that element, expressed in grams per mole (g/mol).

The molar mass of xenon (Xe) is 131.29 g/mol. This means that one mole of xenon has a mass of 131.29 grams.

Therefore, there are 131.29 grams in one mole of xenon.