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…

39.THE PERIODIC TABLE -Metals.

In our last post we introduced the Modern form or Long form of the periodic.Let us now begin to study the table in greater detail. We studied that the periodic table of elements contain elements.But what are elements? Elements are primary constituents of matter which cannot be divided further into other substances by any physical…

38.THE PERIODIC TABLE -History(3)- The Modern Periodic Table.

This post is dedicated to a scientist who gave us the modern periodic table – Henry Moseley! Henry Moseley was born into a family of science scholars.Both his grandfathers were fellows of Royal society and his father was a professor of biology at the Oxford university.He earned a bachelor’s degree from Trinity college and later went to…

37.THE PERIODIC TABLE- History (2)-Dimitri Mendeleev.

The Father of the periodic table .  A child was born on 8th February 1834, in  a small town Tobolsk in Siberia. He was the youngest of 14 siblings.His father was a high school teacher and mother managed a glass factory.His father went blind in the same year of his birth and thus his mother had to…

36.THE PERIODIC TABLE – History(1).

Happy new year! New Year New Topic! Let us begin this new year by delving into a very basic topic in Chemistry – The Periodic Table.Understanding the Periodic table is at the heart of the study of Chemistry.In this post we shall start to explore how exactly this table was developed.Lets go back in time, where only a…