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Symbol: O
Atomic number: 8
Electron configuration: 1s2 2s2 2p4
Discovered: 1774
Boiling point: -183 °C
Atomic mass: 15.9994 ± 0.0004 u
Discoverers: Carl Wilhelm Scheele, Joseph Priestley

​Two oxygen atoms will each share two electrons to form
two covalent bonds and make an oxygen molecule (O2).

Ozone Ozone, or trioxygen, is an inorganic molecule with the chemical formula OO 2. It is a pale blue gas with a distinctively pungent smell. Formula: O3 IUPAC ID: Trioxygen Molar mass: 48 g/mol Boiling point: -112 °C Density: 2.14 kg/m³ Melting point: -192 °C Soluble in: Water, Sulfuric acid, Carbon tetrachloride
The structure of ozone has 3 oxygen atoms, but steric hindrance prevents it from forming a triangular structure, with each O atom forming the expected 2 bonds. Instead each Oxygen forms only 1 bond, with the remaining negative charge being spread throughout the molecule.
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