Modern periodic table, periodic properties

Introduction The elements in the periodic table are mainly divided into four distinct groups: (1) main group elements, (2) transition metals, (3) lanthanides, and (4) actinides. The main group elements comprises all the active metals in the two columns on the extreme left of the periodic table and the metals, semimetals, and non-metals in the […]

Mendeleev’s periodic table gained wide acceptance from the scientific community; this has earned him credit as the discoverer of the periodic law. Element number 101, was synthesized in the year 1955, and it was named as mendelevium after the name of the founder of the periodic table. It was, however, around several years after Mendeleev

The periodic table of elements is a tabular arrangement of all known chemical elements organised by atomic number. The periodic table is divided into rows or periods and columns or groups. The periodic table shows periodic trends. All elements in the periodic table are classified into two groups: representative elements and transition elements. The primary

Introduction Diagonal relationship refers to the resemblance in attributes between two elements that are diagonally adjacent in the second and third period of the periodic table. Beryllium is the first element in Group 2 of the s-block elements, while Lithium is the first element in Group 1. Other components in their group have attributes that

Alkali metals react with a wide range of nonmetals because they are the most electropositive (least electronegative) of all elements. Lithium mimics Group 2 (IIa) of the periodic table in chemical reactivity more than the other metals in its own group. It is less reactive with water, oxygen, and halogens than the other alkali metals,

Introduction Transition elements metals are any of various chemical elements that possess valence electrons—i.e., electrons which participate in the formation of chemical bonds—in two shells instead of only one. Whereas the term transition has no particular chemical significance, it is only a convenient name which is used to distinguish the similarity of the atomic structures

Chemists have always tried to arrange the elements in a way such that it reflects the similarities in their properties. The elements in the modern periodic table are listed in a sequential order of their increasing atomic number (the number of protons in the nucleus of an atom). Earlier the scientists have tried to arrange

Metals are extracted from their ores. Each metal reacts differently with different substances. The extraction of any metal from its ore is dependent on the reactivity of the metal. Thus, the metals present at the bottom of the reactivity series versus those present at the top of the reactivity series follow different processes of extraction.

The long form of the periodic table is the current form of the periodic table that is extensively used around the world. The horizontal rows of this type of periodic table are known as periods, while the vertical columns are known as groups. Groups are made up of elements with atoms that have similar outer

Among the Group 1 Alkali Metals are the elements Magnesium, Calcium, Barium, Strontium, and Radium, which are soft silver metals with a less metallic character than the Group 1 Alkali Metals. Despite the fact that many characteristics are shared by the entire group, heavier metals such as Ca, Sr, Ba, and Ra are almost as