Although Xenon itself does not form any ions normally, being a Member of the Noble Gases (Group 8), it can be compounded with other nonmetals in a covalent bond to form polyatomic ions. The most common form of these usually consists of Xenon and a Halogen (more often Fluorine) or Oxygen, however others exists. An example is Tetraxenonogold II (AuXe4+2).

* I and II Samuel * I and II Kings * I and II Chronicles * I and II Corinthians * I and II Thessalonians * I and II Timothy * The Gospel of John and I, II, and III John

As a Roman numeral ii or II is equivalent to 2

The name of SnCrO4 is Tin II Chromate or stannous chromate.

Examples (Romanian names): Munții Făgăraș, Munții Măcinului, Munții Apuseni, Munții Retezat, Munții Rodnei, Munții Bucegi, Munții Baiului, Munții Ciucaș etc.