Web(b) Draw a ‘dot-and-cross’ diagram to show the bonding in CO 2. Show outer electrons only. [1] (c) Silicon dioxide, SiO 2, has the same structure and bonding as diamond. State the structure and bonding in SiO 2. [1] (d) Describe and explain the electrical conductivity of sodium oxide, Na 2O, and sodium in their solid and molten states. In your answer you … WebPhosphorus tribromide, also known as PBr3, is a colourless liquid with the formula PBr 3. Due to hydrolysis, the liquid emits a pungent odour in moist air. Red phosphorus is treated with bromine to produce PBr 3. 2P + 3Br2 → 2PBr3 To prevent the formation of PBr 5, an excess of phosphorus is used.

Dot and cross diagrams for covalent bonding - BBC Bitesize

WebPhosphorus triiodide (PI 3) is an inorganic compound with the formula PI 3.A red solid, it is a common misconception that PI 3 is too unstable to be stored; it is, in fact, commercially available. It is widely used in organic … WebJun 9, 2015 · (b) Bromine reacts with phosphorus to form the covalent compound phosphorus tribromide. Draw a dot and cross diagram to show the outer electrons in a … css text in der mitte

Drawing Lewis diagrams (video) Khan Academy

WebPhosphorus tribromide, like PCl 3 and PF 3, has both properties of a Lewis base and a Lewis acid. For example, with a Lewis acid such as boron tribromide it forms stable 1 :1 adducts such as Br 3 B · PBr 3. At the same … WebAug 4, 2024 · Phosphorus pentabromide written as PBr5 in the chemistry equations is a reactive yellow solid. The compound has one molecule of Phosphorus and five Bromine molecules. Bromine is a halogen from Group 17 of the periodic table. Halogens are highly reactive and electronegative molecules. WebA3 Two isotopes of phosphorus are 31 15 P and 32 15 P. (a) State one difference and one similarity between these two isotopes. ... Draw the ‘dot-and-cross’ diagram to show the bonding in a molecule of phosphine. Only draw the outer shell electrons. [2] (f) ... css text input width