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To find the group number of noble gases, let's first look at the periodic table. The periodic table arranges elements in groups and periods. Groups run vertically, and periods run horizontally. Upon inspection, we find that noble gases belong to Group 18.

This group contains six gaseous elements known as noble gases: 1. Helium (He) 2. Neon (Ne) 3. Argon (Ar) 4. Krypton (Kr) 5. Xenon (Xe) 6. Radon (Rn)

Noble gases have unique properties that set them apart from other elements: 1. Low reactivity: Noble gases have full electron shells, making them very stable and unreactive. They rarely form chemical bonds with other elements. 2. Monoatomic: These gases exist as single atoms rather than forming molecules. 3. Odorless, colorless, and tasteless: The noble gases are difficult to detect without specialized equipment because they are odorless, tasteless, and colorless. 4. Low boiling and melting points: Noble gases have very low boiling and melting points due to the weak intermolecular forces between their atoms. 5. Good insulators: Noble gases have low thermal conductivity and are consequently used as insulating materials in various applications.