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? restraint in order to spray them with potentially noxious chemicals will also be stressful and frightening for them." ITV replied that the paint was non-toxic, saying "While the animals may have looked quite dramatic in their new colours, they did not come to any harm". Red or Black? Red or Black? is a British television game show which was broadcast on ITV between 3 September 2011 and 29 September 2012. Presented by Ant & Dec and developed by Simon Cowell, "Red or Black?" is the most expensive game show in television history, with a £15 million budget. In each round,