Class 9 Science Chapter 4 Structure of the Atom explains the various theories and experiments conducted for finding out the shape and size of the atom.

Get chapter notes for CBSE Class 9 Science Chapter 4: Structure of the Atom, to make easy and effective preparations for al school test and the annual examinations.

UPMSP Class 9 Science Marking Scheme 2024-25 The marking scheme for UP Board Class 9th Science has been presented in the table below for students of current academic session 2024-2025.