Page 18 - Curriculum Visions Dynamic Book

Se see Selenium Seaborgium (Sg)
Element 106. Formerly called unnilhexium, it is an artificial, radioactive element belonging to the transition metals in the Periodic Table. It has properties similar to tungsten.
Discovery
It was discovered in 1974 by Georgy N. Flerov at the Joint Institute for Nuclear Research in Dubna, Russia, by bombarding lead-207 and lead-208 with ions of chromium-54. Glenn Seaborg was part of
this group and the element was named in
his honour even though an element should not be named after a living person. It was discovered independently by Albert Ghiorso and others at the University of California at Berkeley by bombarding californium-249 with beams of oxygen-18 ions. More recently, scientists at the Paul Scherrer Institute in Switzerland have produced seaborgium using neon atoms to bombard californium isotopes.
Although Glenn Seaborg died in 1999, the final official name for the element remains open to doubt. As a result, it is often
referred to simply as ‘element 106’.
Technology
Isotopes of seaborgium exist for less than a second, and no practical uses have so far been found for this element.
Geology
Because it is an artificial element, it does not occur in the environment.
Biology
Seaborgium does not occur in living things. Because it is radioactive, if it were ever produced in significant amounts, it would be a health hazard.
Key facts...
Name: seaborgium (unnilhexium) Symbol: Sg
Atomic number: 106
Atomic weight: 263
Position in Periodic Table: transition metal, group (6) (chromium group); period 7
State at room temperature: solid Colour: unknown
Density: n/a
Melting point: n/a
Boiling point: n/a
Origin of name: after American nuclear chemist
Glenn T. Seaborg.
Shell pattern of electrons: 2–8–17–14–1
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