Electronegativity Electronegativity (E.N) is the general tendency of an atom in a molecule to draw the shared pair of electrons toward itself. It is defined as an atom’s ability to … Read more
A substance is a type of matter that has specific features and compositions. Substances are made up of atoms and molecules. Each substance has a specific weight and volume. It … Read more
A colloid is a heterogenous mixture in which particle size ranges between 1 and 100 nm. The colloidal state consists of two phases: a dispersed phase and a dispersion phase. … Read more
Nuclear reaction Nuclear reactions are the process in which two atomic nuclei or one atomic nucleus and a subatomic particle (such as a proton or neutron or high energy electron) … Read more
There are two different kinds of electrochemical cells: galvanic cells, which have spontaneous redox reactions that permit continuous electron flow through the conductor, converting chemical energy into electrical energy; and … Read more
Adsorption Adsorption is a surface phenomenon that involves the accumulation of molecular species on the surface rather than within the bulk of a solid or liquid. Adsorbate is the substance … Read more
The major difference between a primary cell and the secondary cell is that primary cells are the ones that cannot be charged but secondary cells are the ones that are … Read more
Physical adsorption, also known as physisorption, is a reversible phenomenon involving weak Van der Waals forces between adsorbate and adsorbent, whereas chemisorption is an irreversible phenomenon involving strong chemical interaction … Read more
Elements undergo chemical reactions to acquire a full outer shell of electrons, which will lead to a more stable energy state. This is accomplished through chemical bonding in which old bonds … Read more