Practice Summary of Key Concepts - 4 | Unit 2: Atomic Structure | IB Grade 11: Chemistry
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4 - Summary of Key Concepts

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What are the three primary subatomic particles?

💡 Hint: Think about the charges of the particles.

Question 2

Easy

Define what an isotope is in simple terms.

💡 Hint: Consider the number of protons in an atom.

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 defines an isotope?

  • Same number of protons
  • different neutrons
  • Different number of protons
  • Same number of neutrons
  • different electrons

💡 Hint: Focus on the number of protons.

Question 2

True or False: Electrons are found in the nucleus of an atom.

  • True
  • False

💡 Hint: Consider the location of protons and electrons.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

An unknown element has an atomic number of 15 and a mass number of 31. Determine the number of neutrons in this element.

💡 Hint: Use the relationship between mass number and atomic number.

Question 2

Explain how the quantum mechanical model of the atom improves upon the Bohr model for multi-electron atoms.

💡 Hint: Consider limitations of circular orbits in the Bohr model.

Challenge and get performance evaluation