Search results
Results from the WOW.Com Content Network
Lewis structure of a water molecule. Lewis structures – also called Lewis dot formulas, Lewis dot structures, electron dot structures, or Lewis electron dot structures (LEDs) – are diagrams that show the bonding between atoms of a molecule, as well as the lone pairs of electrons that may exist in the molecule.
Beryllium chloride is an inorganic compound with the formula BeCl 2. It is a colourless, hygroscopic solid that dissolves well in many polar solvents. Its properties are similar to those of aluminium chloride , due to beryllium 's diagonal relationship with aluminium .
Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Donate
Beryllium oxide (BeO), also known as beryllia, is an inorganic compound with the formula BeO. This colourless solid is an electrical insulator with a higher thermal conductivity than any other non-metal except diamond , and exceeds that of most metals. [ 12 ]
The reaction with lithium hydride (in which the hydride ion is the Lewis base), forms sequentially LiBeH 3 and Li 2 BeH 4. [3] The latter contains the tetrahydridoberyllate(2-) anion BeH 2− 4. Beryllium hydride reacts with trimethylamine, N(CH 3) 3 to form a dimeric adduct with bridging hydrides. [11]
Schematic structure of basic beryllium acetate Beryllium hydrolysis. Water molecules attached to Be are omitted in this diagram Structure of the trimeric hydrolysis product of beryllium(II) Solutions of beryllium salts, such as beryllium sulfate and beryllium nitrate , are acidic because of hydrolysis of the [Be(H 2 O) 4 ] 2+ ion.
Beryllium bromide is the chemical compound with the formula BeBr 2. It is very hygroscopic and dissolves well in water . The Be 2+ cation, which is relevant to BeBr 2 , is characterized by the highest known charge density (Z/r = 6.45), making it one of the hardest cations and a very strong Lewis acid .
It can be prepared from the elements at high temperature (1100–1500 °C); [2] unlike beryllium azide or BeN 6, it decomposes in vacuum into beryllium and nitrogen. [2] It is readily hydrolysed forming beryllium hydroxide and ammonia. [2] It has two polymorphic forms cubic α-Be 3 N 2 with a defect anti-fluorite structure, and hexagonal β-Be ...