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
Black or White (film) 30 critics, indicating "mixed or average reviews". According to CinemaScore, audiences gave the film an average grade of "A−" on an A+ to F scale. Black or White (film) Black or White is a 2014 American drama film directed and written by Mike Binder. The film stars Kevin Costner, Octavia Spencer, Gillian Jacobs, Jennifer Ehle, Anthony Mackie and Bill Burr. The film premiered at the 2014 Toronto International Film Festival and was released in the United States on January 30, 2015. Elliot Anderson (Kevin Costner) is widowed after a car crash leads to the death of his wife. Elliot raises