General Science • ChemistryEasy
Which of the following chemical elements is classified as a noble gas in the modern periodic table?
A. Nitrogen
B. Oxygen
C. Argon✓ Correct Answer
D. Chlorine
💡 Solution & Explanation
Argon is a chemically inert noble gas belonging to group eighteen of the modern periodic table, characterized by a completely filled valence electron shell. Nitrogen and oxygen are essential atmospheric gases, while chlorine is a highly reactive halogen belonging to group seventeen. Noble gases exhibit extremely low chemical reactivity under standard laboratory conditions due to their stable electronic configurations.
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