Question : Which among the following is a noble chemical element of science's periodic table?
Option 1: Nitrogen
Option 2: Helium
Option 3: Scandium
Option 4: Cobalt
Correct Answer: Helium
Solution : The correct answer is Helium.
The noble gases, often known as inert gases, are represented in group 8A (or VIIIA) of the periodic table and include helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe) and radon (Rn). Helium is an element in chemistry with the atomic number two and symbol He. It is the first gas in the periodic table's noble gas category and is colourless, odourless, tasteless, non-toxic and inert.
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