To excel in your CBSE Class 10 Science exam, strategic preparation is crucial. For the academic year 2025-26, the CBSE board has implemented a revised syllabus, removing specific topics. This update ...

THE “periodic” classification of the elements plays such an important part in courses of inorganic chemistry for students that a large wall diagram illustrating this classification has now become a ...

To the three requirements of a modern Periodic Table, as stated by A. A. Clifford 1, must be added a fourth, namely, that it should be in as close accord as possible with chemical facts, and above all ...