element tables

Question 1 - Question: The properties of an element in the periodic table depends on its, ________. 1. atomic size 2. atomic mass 3. electronic configuration 4. number of protons Answer:..

'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 either ns 1 or ns 2 . The 's' bloc..

These consist of all 's' and 'p' block elements excluding the noble gases (group 18 elements). The chemical properties of the representative elements are determined by the number of valence electrons in their atoms. The number of valence electrons belonging to the abov..

Nuclear reactions involving the bombardment technique by different particles have been used to synthesise artificial elements such as Technetium, Astatine and Transuranium. (Z > 92) which follow uranium 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..

Introduction - At the turn of the nineteenth century, about 30 elements were known. 50 years later by the 1850s, scientists had discovered sixty three chemical elements and the numbers kept increasing. With the discovery and study of more and more elements and their co..

Introduction - The long form of the periodic table is based upon the filling of a particular shell and has been accordingly divided into four blocks i.e. 's', 'p', 'd' and 'f' blocks. The 's' block elements involve the filling of 's' subshell. This block includes the elemen..

Predicting Period, Group and Block of an Element - Knowing the electronic configuration, one can predict the period, which corresponds to the principal quantum number of the valence shell. The block of the element corresponds to the sub shell, which receives the last electron. T..

Classification of Elements and Periodicity..

Classification of Elements and Periodicity..