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) $3 million on Saturday, and $986,312 on Sunday for a weekend total of $6.2 million, playing in 1,823 with a per-theater average of $3,408 and ranking #4. "Black or White" received mixed reviews from critics. On Rotten Tomatoes, the film holds a 39% rating, based on 87 reviews, with an average rating of 5.3/10. The website's consensus reads: ""Black or White" has more on its mind than your average family drama, but the film's approach to its thought-provoking themes too often lives down to its title." On Metacritic, the film has a score of 45 out of 100, based on