BioTech Encyclopedia

Elements · ← N Nitrogen · F Fluorine →

O Oxygen

Basic facts

SymbolO
Atomic number8
Standard atomic weight15.999
Group16
Period2
Blockp-block
CategoryNonmetal
Standard stateGas
Discovered1774

Source: PubChem, Oxygen (periodic table data, retrieved 2026-10-19). Group and period follow the standard 18-column periodic table.

Biotech uses & experiments

No dedicated element entries yet; the topics and entries below involve oxygen.

Topics on this site about oxygen

Entries elsewhere on the site that mention oxygen

Found by name, common compounds and chemical formulas in each entry.

Patents

Search Google Patents for oxygen in biological and medical uses: all patents · recent applications (2022+)

A patent is a legal claim, not proof that something works. See the Patents page.