Final answer:
The element located in Group 18, known as the noble gases, is Neon. It is characterized by a complete valence shell which makes it unreactive. Other elements in this group include Argon and Xenon.
Explanation:
Noble Gases in Group 18
Group 18 of the periodic table is known as the noble gases group. Elements in this group are characterized by their complete valence electron shell, which makes them largely unreactive.
Among the options provided:
- Neon (Ne) is a noble gas and is located in Group 18.
- Nitrogen (N) is in Group 15.
- Sodium (Na) is in Group 1.
- Carbon (C) is in Group 14.
Thus, the correct answer to your question is Neon. Other noble gases include Argon (Ar) and Xeon (Xe). These gases are colorless, odorless, and found in very low concentrations in the Earth's atmosphere.
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