valency of compounds

A compound is a substance formed by the combination of atoms of two or more elements . To be able to frame formulae, one should be thorough with the valencies. 1) Frame the formula of the compound formed when sodium and chlorine combine. Write down the symbol of so..

The chemical formula of a compound represents the composition of the molecule of the compound in terms of symbols of the elements present in ..

Like alkali metals, hydrogen also shows an oxidation state of +1 in their compounds. For example,..

1) It is a qualitative approach describing bonding in coordination compounds. 2) The theory fails to explain the optical absorption spectra and magnetic properties of coordination compounds. 3) The theory does not provide an answer to the origin of characteristic colors of compl..

In the last chapter, we dealt with carbon and various allotropes of carbon. Carbon is the only element whose compounds far exceed the compounds of all other elements put together. Carbon has a variable valency of 2 and 4, and as a result, produces two important kinds o..

Boron hydrides (or boranes) - The hydrides of boron are known by a general name borane. These boranes are gaseous substances at room temperature. The general formulae of the two important series of boranes are B n H n + 4 and B n H n + 6 . Amongst the well known boron hydrides are: diborane (B 2 H ..

Factoids A chemical compound is always electrically neutral.The positive and negative valencies of the ions/radicals in a compound are equal and balance..

Covalent compounds are formed by the sharing of electrons by atoms of non-metallic elements between groups IVA and VIIA. The elements of these groups react with one another by sharing election pairs. Thus, the valency of an element in a covalent molecule is equal to the number o..

Covalent Compounds and Periodic Table - Covalent compounds are formed by the sharing of electrons by atoms of non-metallic elements between groups IVA and VIIA. The elements of these groups react with one another by sharing election pairs. Thus, the valency of an eleme..

Hybridization in Carbon Compounds - The electronic configuration of carbon in excited state is given as: 6 C: 1s 2 2s 1 2p x 1 2p y 1 2p z 1 There are four half-filled orbitals available for bond formation resulting in the formation of four covalent bonds in this state. However, the four ..