Practice What is an Atom? - 3.2 | 3. Atoms and Molecules | CBSE 9 Science
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

Define an atom.

πŸ’‘ Hint: Think about the basic building blocks of matter.

Question 2

Easy

What is the significance of atomic symbols?

πŸ’‘ Hint: Consider how we shorthand names in everyday language.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is the smallest unit of an element?

  • Molecule
  • Atom
  • Compound

πŸ’‘ Hint: Consider what forms the basis of chemical properties.

Question 2

True or False: Atoms can be split into smaller parts.

  • True
  • False

πŸ’‘ Hint: Think about the definition of an atom.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

If a molecule of water consists of two hydrogen atoms and one oxygen atom, how would you write its chemical formula? Explain the reason behind the combination.

πŸ’‘ Hint: Think about the ratio of hydrogen to oxygen in water.

Question 2

Discuss the historical significance of atomic theory from Democritus to Dalton and how it shaped modern chemistry.

πŸ’‘ Hint: Consider the transition from philosophy to hard science.

Challenge and get performance evaluation