Categories:Wikipedia articles incorporating a citation from the 1911 Encyclopaedia Britannica with Wikisource reference,
All Wikipedia articles written in American English,
Chemical element, symbol O and atomic number 8
A gaseous chemical element with symbol O and atomic number 8; an essential element in cellular respiration and in combustion processes; the most abundant element in the earth's crust and about 20% of the air by volume.
The chemical element (symbol O) with an atomic number of 8 and relative atomic mass of 15.9994. It is a colorless and odorless gas.