NEET 45-Day Challenge, Day 9: Check important topics of Chemistry Syllabus
With 37 days left for NEET UG 2025, students must focus on Chemistry. Understanding the syllabus, practicing reactions, and ...
Scientific American5d
The Classification of the Chemical Elements
It took centuries to grasp the idea of chemical elements ... upon the table): Fig. 1. The 'periodic chain of elements The elements are arranged according to increasing atomic number or atomic ...