Chemical element named mendelevium in honor of D.I. Mendeleev, the first to arrange the elements in a periodic manner. Most recently, the synthesis of element 118 (since named oganesson) was reported in October 2006, and the synthesis of element 117 (tennessine) was reported in April 2010. Ten materials familiar to various prehistoric cultures are now known to be chemical elements: Carbon, copper, gold, iron, lead, mercury, silver, sulfur, tin, and zinc. Three additional materials now accepted as elements, arsenic, antimony, and bismuth, were recognized as distinct substances prior to 1500 AD. Phosphorus, cobalt, and platinum were isolated before 1750. Most of the
Red or Black? of "Red or Black?" consisted of 10 rounds; in each round, the player had to choose either red or black, with those who choose incorrectly being eliminated. The rounds are split into three stages. The first is an arena stage, which is recorded at Wembley Arena. The winning contestants move onto the location stage, where the numbers are eventually reduced down to the final eight. Those eight then go forward to the live studio final, where they are reduced down to the final competitor, who has a chance to play for the £1m prize. The first series was broadcast over