48.THE PERIODIC TABLE – Is it totally accurate?

The last few posts were completely dedicated to studying the periodic table – A table of elements, which is very fundamental to many sciences like chemistry, physics and material science. This table is at the core of almost everything that is tangible in the universe.It took great effort to develop the entire table, to study…

46.THE PERIODIC TABLE – Electronegativity,EN( χ).

We introduce ourselves to a new concept in this post , which is quiet pertinent to the study of chemical bonds and reactions – Electronegativity . Let us discuss all about this new property , its trends and its use in the study of chemistry. Electronegativity(χ) –  Electronegativity(EN) is a concept , which describes an atom’s…

45.THE PERIODIC TABLE – Electron Affinity (EA).

We begin discussing one more important property of elements in this post – The Electron Affinity(EA). Electron Affinity (EA) – As the name suggests, this parameter talks about how much affinity a species has for electrons. Definition – Electron affinity of an atom /molecule is  the amount of energy released , when an electron is added to each atom…

44. THE PERIODIC TABLE – Ionization Energy(IE).

The study of chemistry involves understanding how elements react , how chemical reactions occur and the various reasons that drive a chemical change.In this post we shall study a parameter, which is fundamental to understanding the phenomenon of formation of ions from elements –  Ionization energy,IE. Why do elements form ions? Why do some elements…

43.THE PERIODIC TABLE – Atomic Mass & Atomic Weight.

Let us now proceed further and discuss periodic trends in a new parameter – The atomic weight or atomic mass. The difference between weight and mass –  Generally the terms weight and mass are used synonymously , although their meanings are different. Mass(measured in g or kg) is a measure of quantity of a substance ,…

42.THE PERIODIC TABLE -Atomic Number, Atomic Mass Number,Atomic size.

We shall begin our discussion on the general periodic trends of the periodic table from this post onwards.Periodicity means the tendency to recur/repeat at regular intervals.The table of elements manifests this phenomenon in many ways. The arrangement of elements is such that their properties show a periodic trend across a row and down a group.Let…

41.THE PERIODIC TABLE – s,p,d,f blocks.

In our 28th post , we have already introduced the concept of electronic configurations and the various rules that determine the sequence of filling of the shells and subshells, in an atom.In this post, let us examine the same topic, in relation to  position of the elements in the periodic table. The periodic table shows…

40.THE PERIODIC TABLE – Non-metals and Metalloids.

In our last post we discussed the properties of metals in detail.In this post, let us look into  non-metals and metalloids.Let us figure out, how these two can be differentiated from metals. Let us begin our discourse on the remaining elements of the periodic table. Non-metals are elements, which are found in nature, which do…