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Atomic Profile
Oxygen (O)
Discover properties, shell configurations, industrial applications, compounds, and historical occurrences of the Oxygen element.
8O15.999
Physical Properties
Melting Point-218.79 °C
Boiling Point-182.95 °C
Density1.429 g/L
Electronegativity3.44
Group / PeriodGroup 16, Period 2
Electronic Config[He] 2s² 2p⁴
Bohr Shells2, 6
Bohr Electron Model
Visualizing the concentric Bohr orbits and energy level shells for Oxygen.
+8
Shell 1: 2e⁻ | Shell 2: 6e⁻
Origin & Abundance
Discovery Details
Discovered by Joseph Priestley & Carl Wilhelm Scheele in the year 1774.
Natural Occurrence
Makes up 21% of dry atmospheric air (as O₂). Most abundant element in the Earth's crust (46%), primarily in silicate minerals.
Common Uses & Applications
- Aerobic respiration in living organisms
- Steel smelting blast furnaces
- Rocket fuel oxidizer
- Medical oxygen therapy cylinders
Common Chemical Compounds
Below are typical molecular compounds formed by Oxygen interacting with other elements:
H₂O (Water)CO₂ (Carbon Dioxide)SiO₂ (Silicon Dioxide)Fe₂O₃ (Iron Oxide)
Element Concept Check
Which element is the most abundant by mass in the Earth's crust?
Video Lectures & Fact Files
Watch educational lectures detailing the chemical extraction and molecular spectrums of Oxygen.
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