Heavy metals only mercury, lead and bismuth meet all of them. Despite this lack of agreement, the term (plural or singular) is widely used in science. A density of more than 5 g/cm is sometimes quoted as a commonly used criterion and is used in the body of this article. The earliest known metals—common metals such as iron, copper, and tin, and precious metals such as silver, gold, and platinum—are heavy metals. From 1809 onwards, light metals, such as magnesium, aluminium, and titanium, were discovered, as well as less well-known heavy metals including gallium, thallium, and hafnium. Some heavy metals are either
King of the Road (skateboarding) The 2017 teams were announced July 6, 2017. Team Element was the winner. Evan Smith was the MVP. This season of King of the Road aired in 2018 as eleven hour-long TV episodes on the VICELAND channel and the Thrasher website. King of the Road (skateboarding) The title of King of the Road is given out once a year by "Thrasher" magazine. The tradition was started in 2003 and has been one of the premier skateboarding contests in the USA. In the King of the Road (KOTR) contest, a group of pre-invited teams of professional skaters are each given a