Every field of science has its favorite anniversary. For physics, it’s Newton’s Principia of 1687, the book that introduced the laws of motion and gravity. Biology celebrates Darwin’s On the Origin of ...

In this article, the engineering section of Jagranjosh after the detailed analysis of the pattern and the syllabus of the examination brings to you the complete chapter notes of chapter Periodic ...

The periodic table of chemical elements, often called the periodic table, organizes all discovered chemical elements in rows (called periods) and columns (called groups) according to increasing atomic ...