Which of the following is a noble gas ____?

A ) Oxygen

B ) Argon ✅

C ) Hydrogen

D ) Nitrogen


Explanation:

✅ Noble Gas:

A noble gas is a chemical element in Group 18 (also called Group VIII-A) of the Periodic Table. Noble gases are colorless, odorless, tasteless, and nonreactive under normal conditions.

✅They are called noble gases because they are inert (non-reactive) under normal conditions.

📘 Noble Gases List (Group 18 of Periodic Table):

  1. ✅ Helium (He)(2Atomic Number ) 
  2. ✅ Neon (Ne) (10Atomic Number ) 
  3. ✅ Argon (Ar)(18 Atomic Number ) 
  4. ✅ Krypton (Kr)(36 Atomic Number )  
  5. ✅ Xenon (Xe) (54 Atomic Number ) 
  6. ✅ Radon (Rn) (86 Atomic Number ) 
  7. ✅ Oganesson (Og) (radioactive and synthetic) . (118 Atomic Number )