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BookmarkOxygen is a chemical element in the periodic table.
See also:
It has the symbol O and atomic number 8.
The element is the most common on Earth, composing around 46% of the mass of Earth's crust, and is the third most common element in the universe.
Oxygen is a major component of air, produced by plants during photosynthesis..
For more information about the topic Oxygen, read the full article at Wikipedia.org, or see the following related articles:
Argon — Argon is a chemical element in the periodic table. It has the symbol Ar and atomic number 18. The third noble gas, in group 18, argon makes up about ... > read more
Neon — Neon is the chemical element in the periodic table that has the symbol Ne and atomic number 10. A colorless, nearly inert noble gas, neon gives a ... > read more
Krypton — Krypton is a chemical element with the symbol Kr and atomic number 36. A colorless, odorless, tasteless noble gas, krypton occurs in trace amounts in ... > read more
Boiling point — The boiling point of a substance is the temperature at which it can change its state from a liquid to a gas throughout the bulk of the liquid. A ... > read more
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