Practice ATOMIC NUMBER - 4.5.1 | 4. Structure of the Atom | CBSE 9 Science
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is the atomic number of oxygen?

💡 Hint: Refer to the periodic table.

Question 2

Easy

Define isotopes.

💡 Hint: Think about elements with varied neutron counts.

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 atomic number of fluorine?

  • 9
  • 18
  • 8

💡 Hint: Refer to the periodic table.

Question 2

True or False: All isotopes of an element behave chemically the same.

  • True
  • False

💡 Hint: Consider the definition of isotopes.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Calculate the atomic number and mass number for an atom with 12 protons and 10 neutrons.

💡 Hint: Use the definitions of atomic and mass numbers.

Question 2

Explain why isotopes have similar chemical properties but different physical properties, providing examples.

💡 Hint: Focus on the structure of atoms for chemical behavior.

Challenge and get performance evaluation