Allotropes of phosphorus Allotropes of phosphorus Elemental phosphorus can exist in several allotropes, the most common of which are white and red solids. Solid violet and black allotropes are also known. Gaseous phosphorus exists as diphosphorus and atomic phosphorus. White phosphorus, yellow phosphorus or simply tetraphosphorus (P) exists as molecules made up of four atoms in a tetrahedral structure. The tetrahedral arrangement results in ring strain and instability. The molecule is described as consisting of six single P–P bonds. Two different crystalline forms are known. The α form is defined as the standard state of the element, but is actually metastable under standard
Red or Black? the first three rounds, the eight contestants watch a series of stunts, sporting challenges or performances. They'll then use their judgement to predict the outcome or have their powers of observation tested. Either way, the contestants must strike their buzzer and pick either red or black. The first game takes place in the "Red or Black?" arena and subsequent games are held in the studio. After the first three rounds, the four players with the highest scores will move on to Part 2. If a tie occurs, the two or more players will play a tiebreaker round, "Power Bar", to