Transition metal prevent d–d bonding, which again tends to differentiate them from the accepted transition metals. Mercury has a melting point of and is a liquid at room temperature. Transition metal In chemistry, the term transition metal (or transition element) has three possible meanings: English chemist Charles Bury (1890–1968) first used the word "transition" in this context in 1921, when he referred to a "transition series of elements" during the change of an inner layer of electrons (for example n=3 in the 4th row of the periodic table) from a stable group of 8 to one of 18, or from 18 to
XM Liquid Metal since the beginning of XM Satellite Radio's launch, but with the incoming of Major League Baseball and XM's MLB Home Plate talk station, XM Liquid Metal had to be removed from the satellites for extra bandwidth. On February 15, 2005, the switch was made. With the change, XMLM DJ Ward Cleaver moved to XM 48 SquiZZ to do mid-days. Unfortunately, unlike other XM Online channels, XM Liquid Metal was not carried of other services such as DirecTV or AOL Radio. For about a year, there were various complaints on XM online forums, and ones that were sent to XM themselves.