periodic table elements helium
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periodic table elements helium |
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| navigate by keyword : abundant atomic box chemical chemistry colorless cube element elements gas helium inert mass monatomic nontoxic number odorless periodic reaction science square symbol table tasteless |
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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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