Seaborgium (Eka-Tungsten) occurs as chemical element in the periodic table that has the symbol Sg & atomic number 106. It was likewise referred to as "unnilhexium" (Unh), & at once "rutherfordium" was suggested. Seaborgium occurs as synthetic element whose most stable isotope ²⁶⁶Sg has a half-life of 21 seconds. Its chemistry resembles that of w.

History
Element 106 was found well-nigh at the same time by deuce different laboratories. Within June 1974, a Soviet team led by G. N. Flerov at the Joint Institute for Nuclear Research at Dubna reported producing an isotope with mass number 259 and a half-life of 0.48 s, and in September 1974, an American research team led by Albert Ghiorso at the Lawrence Radiation Laboratory at the University of California, Berkeley reported creating an isotope with mass number 263 and a half-life of 1.0 s.

Because their operate was independently confirmed 1st, a Americans suggested a title atomic number 106 to honor a Our contries chemist Glenn T. Seaborg. This title was super controversial because Seaborg was however alive. An international committee decided around 1992 that the Berkeley & Dubna laboratories should part credit for the discovery.

An element naming controversy erupted and following IUPAC adopted unnilhexium (symbol Unh) as a temporary, systematic element name. Inside 1994 the committee of IUPAC recommended that element 106 become known as rf & adopted the rule that there is no element may be known as fallowing a dwelling individual. This opinion was fiercely objected to per American Chemical Society. Critics pointed out that the precedent got been placed in the naming of einsteinium during Albert Einstein's life. Around 1997, as section of a compromise involving unnilquadium to 108, the title atomic number 106 for element 106 was recognized internationally.

Isotopes
There are Eleven known isotopes of Seaborgium, a longest-lived isotope is ²⁶⁹Sg which decays across alpha decay and spontaneous fission. It has the half-life of Twenty-two s. A shortest-lived isotope is ²⁵⁸Sg which decays across alpha decompose & self-generated fission. It has the half-life of Deuce.Nine ms.