CAS Number7782-44-7
PubChem CID977
Atomic Radius48
Atomic Volume14
Atomic Weight15.999
Boiling Point-182.95
Bulk Modulus
CategoryOther nonmetals
Crystal StructureBase Centered Monoclinic
Covalent Radius66
Electrical Resistivity
Electron Configuration[He] 2s2 2p4
Electrons per shell2, 6
Heat of Fusion0.222
Heat of Vaporization3.41
Ionization Potential13.618
Magnetic Ordering
Magnetic Susceptibility
Mass Number8
Melting Point-218.79
Atomic Number16
Oxidation States-2, -1, 1, 2
Poisson Ratio
Shear Modulus
Specific Heat Capacity0.918
Thermal Conductivity0
Van der Waals radius
Young's Modulus
Abundance in Earth's crust46%
Abundance in Universe1%
O Oxygen 8 15.9994 16 2 p 8 -218.4 -183.0 [He] 2s2 2p4 2 6 0.00143 46% Colorless Cubic 3.4 3.610 {"1":"1313.9","2":"3388.3","3":"5300.5","4":"7469.2","5":"10989.5","6":"13326.5","7":"71330","8":"84078.0"} 1314 141 73 -2 0.65 14.0 0.222 3.4109 0.92 0.2674 0 Gas, Paramagnetic, Stable, Natural, Nonmetal OK-si-jen Colorless, odorless, tasteless gas; pale blue liquid. Third most abundant element in the universe. It is the most abundant element in the earth's crust, and makes up almost 21% of the atmosphere. Used in steel making, welding, and supporting life. Naturally occuring ozone (O3) in the upper atmosphere shields the earth from ultraviolet radiation. Obtained primarily from liquid air by fractional distillation. Small amounts are made in the laboratory by electrolysis of water or heating potassium chlorate (KClO3) with manganese dioxide (MnO2) catalyst. WuG5WTId-IY Oxygen
Scientists working at the Joint Institute for Nuclear Research in Dubna, USSR reported their discovery of element 106 in June 1974.

Synthesis was also reported in September 1974 at the Lawrence Berkeley Laboratory by the workers of the Lawrence Berkeley and Livermore Laboratories led by Albert Ghiorso and E. Kenneth Hulet.

It was produced by collisions of californium-249 with oxygen atoms. Named after Glenn Seaborg, American nuclear chemist and Nobel prize winner 8 1774 Joseph Priestley, Carl Scheele England, Sweden From the Greek words "oxy genes" meaning "acid" (sharp) and "forming" (acid former)

Isotopes of Seaborgium

Standard Atomic Weight


Stable Isotopes

16O 17O 18O

Unstable Isotopes

12O 13O 14O 15O 19O 20O 21O 22O 23O 24O 25O 26O 27O 28O

Seaborgium is harmful due to its radioactivity
There are 12 known isotopes of seaborgium
Seaborgium is used for scientific research purposes only.