electron configuration for the elements in the periodic table

..

..

Introduction - With the rapid development of Chemistry and the discovery of new elements, it was necessary to develop a simple way to study and remember the numerous properties of the elements and their compounds. This gave rise to the necessity of classification of the ele..

Hydrogen is the first element of the periodic table. Its atomic number is 1, which indicates the presence of only one electron in the atom of hydrogen. This electron is present in its first shell. Hydrogen resembles both alkali metals (group I A) as..

From chlorine to iodine, which ionize by accepting one electron there is a decrease in the electron affinity or the energy released. The lower electron affinity of fluorine when compared to chlorine is not fully understood. Element Electron A..

Electron affinity is the amount of energy released when an electron is added to an isolated gaseous ato..

1.Chlorine is placed second after fluorine in group VIIA. 2. Other members of this group are fluorine, bromine, iodine and astatine (the last member is radioactive). 3. Members of this group are called 'halogens' meaning salt producers. 4. Atoms of halogens have seven electrons..

Main Features of the Long Form of the Periodic Table - 1. The properties of an element in the periodic table mainly depend on its outer electronic configuration, except in the case of transition elements. 2. Each p..

's' block elements, (except helium) are those in which the valence-shell is the 'ns' orbital and where the last electron enters into the 's' orbital of the outer element. The general outer electronic configuration of such elements is eith..

>The position of an element in the Periodic table tells us about its chemical reactivity. Representative periodic table for eight groups up to calcium (atomic number 20) with their electronic configuration is given in the ta..