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 ...

Check CBSE Class 10 Science Notes for Chapter 5 - Periodic Classification of Elements for quick revision before Board Exam 2021. These notes are according to the revised CBSE Class 10 Science Syllabus ...

A MODERN table of chemical elements must show electronic configurations as well as the variation in the properties of the elements with atomic number. It should also include the lanthanide and ...

The National Council of Educational Research and Training (NCERT) has removed a chapter on the periodic table of elements, among other topics, from the Class 10 science textbook as a part of a ...