Seaborgium is an artificial chemical element with atomic number 106 and symbol Sg in the periodic table. It is a d-block transactinide element. It is a member of the 7th period and belongs to the group 6 elements as the fourth member of the 6d series of transition metals. Chemistry experiments have confirmed that seaborgium behaves as the heavier homologue to tungsten in group 6. The chemical properties of seaborgium are characterized only partly, but they compare well with the chemistry of the other group 6 elements.
In 1974, a few atoms of seaborgium were produced in laboratories in the Soviet Union and in the United States. The priority of the discovery and therefore the naming of the element was disputed between Soviet and American scientists, and it was not until 1997 that International Union of Pure and Applied Chemistry (IUPAC) established seaborgium as the official name for the element.
Characteristics of Seaborgium
- Seaborgium and its compounds are radioactive.
- Many experiments state that it behaves as the heavier homolog to Tungsten. The element is present in the 7th period of the periodic table and belongs to group 6 elements.
- It does not possess any naturally occurring or stable isotopes. Many radioactive isotopes have been made in the laboratory, either by observing the decay of heavier metals or by fusing two atoms.
- It is predicted to be in the solid state under normal conditions and possess a body-centered cubic crystal structure similar to Tungsten.
- It should be a very heavy metal with a density of around 35.0 g/cm3, which would be the fourth-highest of any of the 118 known elements, lower only than bohrium (37.1 g/cm3), meitnerium (37.4 g/cm3) and hassium (41 g/cm3), the three following elements in the periodic table.