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Which elements belong to the noble-gas group?
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chemical element
The geochemical cycle.
The noble gases are a group of seven chemical elements that constitute Group 18 of the periodic table. These elements are characterized by their status as colorless, odorless, tasteless, and generally nonflammable gases.1
The elements belonging to the noble-gas group are:
Historically, these elements were sometimes referred to as "inert gases" because they were believed to be chemically unreactive; however, it is now known that some of them can form chemical compounds. Oganesson, the heaviest member of the group, is a synthetic, highly radioactive element that is expected to exhibit different propertiesāsuch as being solid at room temperatureādue to relativistic effects associated with its large atomic size and mass.12