1. helium [ Synonyms: atomic number 2, he] | |
A very light colorless element that is one of the six inert gasses; the most difficult gas to liquefy; occurs in economically extractable amounts in certain natural gases (as those found in Texas and Kansas)
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ہیلیم گیس ھلکی اور بغیر رنگ کی۔ |
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