CBSE Class 9 Science Chapter 4 Structure of the Atom Important Questions is compiled here for the students to prepare most competently for the Class 9 exams. Students who are studying in Class 9 and use the NCERT Textbook to study Science will have come across Chapter 4 Structure of the Atom. It is a very important chapter and referring to these questions given here will help the students to revise the chapter well. CBSE Class 9 Science Important Questions are the best resource for the students to prepare for the final exams.
CBSE Class 9 Science Chapter 4 MCQs
1. _______discovered the electron.
2. What property of an element determines its chemical behaviour?
(a) Valency of an element
(b) Size of an element
(c) Molar mass of the element
(d) None of the above
3. _______ is the radioactive element used in the treatment of cancer.