what is the hilliyam what is hilliyam..!?????
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1)a very light colourless gas that does not burn, often used to fill objects that float in the air (balloons)
2)a very light colourless gas that does not burn, often used to fill objects that float in the air (balloons)
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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. Its boiling point is the lowest among all the elements.
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