The Noble Gases are a group of elements with similar properties, all from atomic Group 18. They are colorless, odorless, and have a very low chemical reactivity, as well as they are all gases. Ununoctium, or Uuo element 118, has been suspected to be a noble gas as well, but little is known about this element, as it must be created synthetically and has a short Half-life, and only a tiny amount has ever been created.