Facts
Oganesson is a synthetic chemical element with the symbol Og
Element 118 was named after Yuri Oganessian, a pioneer in the discovery of synthetic elements
Oganesson atomic number is 118
Oganesson has the highest atomic number and highest atomic mass of all known elements.
It was first synthesized in 2002 at the Joint Institute for Nuclear Research in Russia
On the periodic table of the elements it is a p-block element
It is the last element of period 7.
Oganesson has one known isotope, 294Og, with a half-life of about 0.89 milliseconds.
The group of Oganesson in the periodic table is 18 because it is a noble gas.
Its properties are unknown since only a few of its atoms have been artificially produced.
The boiling point of Oganesson is 450K to 465K
The melting point of Oganesson lies between 325K to 340K
The radioactive oganesson atom is very unstable, and only at most six atoms of the isotope oganesson-294 have been detected
Oganesson has more than 86 electrons in the valence shell
It belongs to the island of stability concept, which is a hypothetical area with longer-lived isotopes of superheavy elements.
Oganesson is one of only two elements named after a person living at the time of naming. The other element is seaborgium.
It may be significantly reactive
Information
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