Sketch the structure of atom as you imagine in What Is Inside The Atom – Class 9 Science Experiment

Chapter Name: What Is Inside The Atom

Activity Name: Sketch the structure of atom as you imagine in What Is Inside The Atom

Activity Description:

In this experiment, students will explore the structure of an atom by arranging subatomic particles (electrons, protons, and neutrons) in various ways within a spherical shape, mimicking the structure of an atom. They will be encouraged to use their imagination and creativity to represent different arrangements of these particles.

Required Items:

  • Drawing paper or sketchbook
  • Pencils and erasers
  • Colored markers or pencils (optional)

Step by Step Procedure:

  1. Introduce the concept of subatomic particles: electrons, protons, and neutrons, along with their properties and charges.
  2. Explain the analogy of arranging particles in an atom to organizing items in a room, where the spherical shape represents the atom.
  3. Encourage students to use their imagination and creativity to draw one possible arrangement of subatomic particles in the atom. They can place electrons in alternating rows around the nucleus (protons and neutrons).
  4. Discuss the uniqueness of each student’s representation and the possibilities for different arrangements within the atom.
  5. In groups or individually, have students imagine and draw another arrangement of subatomic particles inside the spherical atom, considering the nature and behavior of these particles.
  6. Optional: Students can use colored markers or pencils to differentiate between particles and create visually appealing models.

Experiment Observations:

  • Students will create two or more different atom models showing the arrangement of subatomic particles.
  • Each model may vary in the distribution and positioning of electrons, protons, and neutrons.
  • Observations can be recorded based on the uniqueness and creativity of each model.


  1. Students should handle pencils and other drawing materials carefully to avoid accidents.
  2. Emphasize that this activity is purely theoretical and represents the simplified structure of atoms.

Lesson Learnt from Experiment:

Through this experiment, students will understand that the arrangement of subatomic particles in an atom is not fixed and that multiple configurations are possible. They will also grasp the concept that electrons exist in energy levels or shells around the nucleus and that the distribution of electrons determines an atom’s chemical properties.

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