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315

Q:

इनमें से कौनसी एक परमाणु वाली गैस है?

  • 1
    ऑक्सीजन
  • 2
    निऑन
  • 3
    नाइट्रोजन
  • 4
    फ्लुओरीन
  • Show Answer
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Answer : 2. "निऑन"
Explanation :

Argon elements have atomicity equal to one. 

Argon is a chemical element with the symbol Ar and atomic number 18. 

It is in group 18 of the periodic table and is a noble gas.

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