atomic number 8, n.
a nonmetallic bivalent element that is normally a colorless odorless tasteless nonflammable diatomic gas; constitutes 21 percent of the atmosphere by volume; the most abundant element in the earth's crust
<noun.substance> freq. cnt.: 39 freq. cnt.: 39
O atomic number 8 oxygen
<noun.substance> freq. cnt.: 39 freq. cnt.: 39
O atomic number 8 oxygen
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