Periodic Trends of Xenon

• Atomic radii: Increases down the table. Reason: The radii is constantly increasing because the nucleus is gaining more protons, therefore affording to attract more electrons. For example, with an atomic number of 2, helium can only hold 2 electrons. On the other hand, Xenon has an atomic number of 54, which allows the element to hold 54 electrons. This brings the electron cloud to the 5p orbital.  
• Boiling point: Increases down the table. As you go down the periodic table of the noble gases, there are more electrons, creating more
  Van Der Waals forces. We know that boiling points depend on the strength of the bonds. The stronger the bonds, the more energy it needs to drive structure to entropy, therefore having a higher boiling point. 
• Ionization energies: Increases going up the table because it's harder to remove electrons from smaller atoms.