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Which of the following is not a noble gas?
Nitrogen
Neon
Argon
Helium
Nitrogen
Nitrogen is not a noble gas; it belongs to Group 15 of the periodic table and is a reactive non-metal that makes up about 78% of Earth's atmosphere. In contrast, Neon, Argon, and Helium are noble gases located in Group 18, famous for their chemical inertness.
Nitrogen is not a noble gas; it belongs to Group 15 of the periodic table and is a reactive non-metal that makes up about 78% of Earth's atmosphere. In contrast, Neon, Argon, and Helium are noble gases located in Group 18, famous for their chemical inertness.
Think of noble gases as guests who already have a full house and refuse to mingle with anyone else, whereas nitrogen atoms are like close partners who prefer to hold hands tightly in pairs.
He Never Argued, KriXy Ran Out (Helium, Neon, Argon, Krypton, Xenon, Radon, Oganesson)
N2тАЛ тАФ Diatomic nitrogen molecule with a triple bond
1s2 тАФ Electronic configuration representing helium's complete duet shell
Noble gases possess a completely filled valence shell, giving them high stability and minimal tendency to react or form compounds. Nitrogen has five valence electrons (2s22p3) and achieves stability by forming a strong covalent triple bond (NтЙбN) with another nitrogen atom.
Noble gases form Group 18 of the modern periodic table.
Nitrogen is a diatomic gas belonging to Group 15 (pnictogens).
Noble gases exist as monoatomic gases due to their stable electronic configuration.
Nitrogen is used extensively in food packaging to preserve freshness and prevent oxidation.
Argon and Neon are widely used in lighting and arc welding due to their inert nature.
Nitrogen constitutes roughly 78.09% of Earth's dry atmosphere.
Helium, Neon, and Argon are all monoatomic noble gases found in Group 18.
A is correct тАФ Nitrogen is a Group 15 reactive non-metal, whereas Neon, Argon, and Helium are Group 18 noble gases.
Questions frequently test Group 18 (noble gases) versus Group 15 and 16 elements regarding reactivity and valence shell electron counts.
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