Class 12

A periodic table of elements, consisting of all chemical elements in a tabular display, is an essential part of chemistry. The alkaline earth metals do not occur in a free state as they are highly reactive, and it has low electronegativity and electron affinity. These are highly reactive as they tend to lose electrons from […]

The periodic table is composed of elements, and these elements are divided into groups. The electron configurations of elements can be used to divide them into groups. The valence electrons of these elements lie in s and p orbitals, which are filled. The valence electrons of the outer transition metals lie in d orbitals (groups

Group 13 elements belong to the boron family. These elements start with the p block. The following elements are present in this group:  Boron (B) Aluminium (Al) Gallium (Ga) Indium (In) Thallium (Tl), Nihonium (Nh) In this group of elements, boron represents anomalous behaviour, whereas aluminium has metallic properties but is similar to boron. Other

The elements occurring in group 2 of the periodic table are alkaline earth metals. These elements are abundant in the earth and thus acquire this name. Group 2 elements have the dipositive oxidation state (M2+) as their primary valence. The alkaline earth metals create mainly ionic compounds but are less ionic than the equivalent alkali

Lanthanides are also known as rare earth elements. They are from the family of inner transition elements. They are present at the bottom of the periodic table. The first lanthanide element was discovered in 1787. It was first found in mineral form, and later it was separated into its constituent lanthanide elements. Although it is

Boron is a highly hard solid with high thermal conductivity, lightweight, and minimal electrical properties. Bullet-proof garments are made from boron fibres. Boron isotopes have a great propensity to absorb particles, and their chemical borides are employed as protective shields in energy reactors. Aluminium (Al) is mined from the Earth’s crust. Compared to many other

The meaning of physical properties refers to those properties of elements that are not associated with their chemical composition or change in chemical composition. In other words, we can say that the physical properties of an element are observable without any change in the identity of the substance. The physical property examples include density, solubility,

In group 2 of the periodic table, there are six elements. They are so named because the oxides that are found in nature are alkaline or basic. They remain unaffected by any combusting agent like heat or fire. They are highly reactive and do not exist in the earth’s crust in their free states. Rather,

The chemistry world has a periodic table with various chemical elements. One of the integral parts of the periodic table is the actinides. Actinides are the chemical elements introduced in 1945, and since then, 15 chemical elements have been classified under this element. The various properties of actinides distinguish them.  In this article, we will

Alkaline earth metals, much like alkali metals, are a group of metals that are highly reactive as compared to other elements. They cannot be found in their natural elemental form but in compound form as carbonates or sulphates. Diagram of the periodic table of the elements Alkaline earth metals consist of six elements- Beryllium (Be),