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
<noun.substance> freq. cnt.: 39 freq. cnt.: 39
| O |
|
| atomic number 8 |
|
| oxygen |
|
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substance holonym
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