The atomic number is 54 and the mass is 131.30. It's period # is 5 and it is in group # 18. Xenon belongs to the "Noble Gases" group. It is a gas which means it is nonmetal.
Photographic Flash Lamps
Xenon is used in flash lamps. Which helps the lighting when taking pictures.
High intensity arc-lamps
Xenon is used in high intensity arc lamps for motion picture projection.
Used in medicine as a general anesthesia.