Question
Which of the following is NOT classified as a zero-group
element (noble gas)?Solution
The zero group elements, also known as noble or inert gases, include Helium, Neon, Argon, Krypton, Xenon, and Radon. Hydrogen is not part of this group as it belongs to Group 1 in the periodic table. Argon is the most abundant inert gas in the Earth's atmosphere.
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