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Aman Yadav

Nda & Airforce
General Awareness
2 years ago

helium ka atomic no

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Dileep Vishwakarma

2 years ago

Helium  is a chemical element with the symbol He and atomic number 2. It is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas, the first in the noble gas group in the periodic table.

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