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Oxygen at Chemical Elements.com
Basic Information | Atomic Structure | Isotopes | Related Links | Citing This Page


Basic Information


Name: Oxygen
Symbol: O
Atomic Number: 8
Atomic Mass: 15.9994 amu
Melting Point: -218.4 °C (54.750008 K, -361.12 °F)
Boiling Point: -183.0 °C (90.15 K, -297.4 °F)
Number of Protons/Electrons: 8
Number of Neutrons: 8
Classification: Non-metal
Crystal Structure: Cubic
Density @ 293 K: 1.429 g/cm3
Color: colorless


Atomic Structure

[Bohr Model of Oxygen]  
Number of Energy Levels: 2

    First Energy Level: 2
    Second Energy Level: 6

Isotopes

Isotope Half Life
O-15122.2 seconds
O-16Stable
O-17Stable
O-18Stable

Facts


Date of Discovery: 1774
Discoverer: Joseph Priestly
Name Origin: From the Greek words oxus (acid) and gennan (generate)
Uses: supports life
Obtained From: from liquid air

Related Links

Note: The external links below are not a part of this site and their content is not the responsibility of this site
  1. Chemical Of The Week -- Ozone
    • From the University of Wisconsin-Madison
If you know of any other links for Oxygen, please let me know

MLA Format for Citing This Page


Bentor, Yinon. Chemical Element.com - Oxygen. <http://www.chemicalelements.com/elements/o.html>.

For more information about citing online sources, please visit the MLA's Website.

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