Structure of the Atom — Important Questions
Madhya Pradesh Board · Class 9 · Science
44 important questions from Structure of the Atom for Madhya Pradesh Board Class 9 Science, with answers. Includes multiple choice and multiple correct.
Interactive on Super Tutor
Studying Structure of the Atom? Get the full interactive chapter.
Quizzes, flashcards, AI doubt-solver and a step-by-step study plan — built for important questions and more.
Free trial, no card needed.
Learn better with visuals Super Tutor pairs illustrations like this with notes and quizzes for Structure of the Atom.
Important Questions from Structure of the Atom
Which subatomic particles are present in the nucleus of an atom?
Show answer
Protons, Neutrons
The nucleus contains protons (positively charged) and neutrons (neutral). Electrons revolve around the nucleus in shells. Positrons are not found in normal atoms.
What did Rutherford's gold foil experiment prove?
Show answer
Most of the atom is empty space, The nucleus is very small, All positive charge is concentrated in the nucleus
Rutherford's experiment showed that most alpha particles passed through (empty space), few were deflected (small nucleus), and very few bounced back (concentrated positive charge). This disproved Thomson's model and Dalton's indivisible atom theory.
What is the atomic number of an element with 11 protons?
Show answer
11
Atomic number equals the number of protons in the nucleus. An element with 11 protons has atomic number 11 (which is sodium).
Which of the following are isotopes of hydrogen?
Show answer
Protium, Deuterium, Tritium
Protium (¹₁H), Deuterium (²₁H), and Tritium (³₁H) are the three isotopes of hydrogen with mass numbers 1, 2, and 3 respectively. Helium is a different element.
+40 more questions on Structure of the Atom (Madhya Pradesh Board Class 9 Science)
Practise AllFrequently Asked Questions
What are the important topics in Structure of the Atom for Madhya Pradesh Board Class 9 Science?
How many important questions are there in Structure of the Atom?
Sources & Official References
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
More resources for Structure of the Atom
Practice Quiz
Test yourself with a quick quiz
Revision Notes
Key points for last-minute revision
Formula Sheet
The chapter's formulas in one place
Chapter Summary
Understand the chapter at a glance
Flashcards
Quick-fire cards for active recall
Syllabus
What topics to cover
NCERT Solutions
Every textbook question solved step by step
For serious students
Get the full Structure of the Atom chapter — start free.
Quizzes, flashcards, an AI doubt solver and a study plan for Madhya Pradesh Board Class 9 Science. Free to start, no card needed.