https://paragraph.com/@nature-5 Save it now before it's late. Wed, 19 Aug 2026 21:47:47 GMT https://validator.w3.org/feed/docs/rss2.html https://github.com/jpmonette/feed en https://storage.googleapis.com/papyrus_images/6f8eb8381324e505178923a8833a64d02e9c7bfe92cfa91d8dc070fab871fd22.jpg https://paragraph.com/@nature-5 All rights reserved https://paragraph.com/@nature-5/oxygen HLZv08ia1jMNCoayRYJ8 Thu, 23 Mar 2023 17:16:03 GMT Alex: Oxygen is a chemical element with the symbol O and atomic number 8. It is a member of the chalcogen group on the periodic table and is a highly reactive nonmetallic element. By mass, oxygen is the third-most abundant element in the universe, after hydrogen and helium. At standard temperature and pressure, two atoms of the element bind to form dioxygen, a colorless and odorless diatomic gas with the formula O2. Diatomic oxygen gas constitutes 20.8% of the Earth's atmosphere. As compounds including oxides, the element makes up almost half of the Earth's crust.

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