Practice Exercises - 3.9 | 3. Classification of Elements and Periodicity in Properties | CBSE 11 Chemistry Part 1
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is the atomic number?

💡 Hint: It determines the element's identity.

Question 2

Easy

What element is placed below hydrogen in the Periodic Table?

💡 Hint: It is the first alkali metal.

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 does the Periodic Table arrange elements by?

  • Atomic weight
  • Atomic number
  • Mendeleev's law

💡 Hint: Think about how elements are classified today.

Question 2

True or False: Mendeleev's Periodic Table was the first to use atomic numbers as a basis for arrangement.

  • True
  • False

💡 Hint: Consider the early discussions on atomic structure.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Using the Periodic Table, determine the properties of an unknown element with atomic number 98 and describe its likely behavior in reactions.

💡 Hint: Look at its position and group tendencies.

Question 2

Evaluate how the modern Periodic Law changed from Mendeleev’s law to impact classifications today.

💡 Hint: Consider the benefit of knowing the true structure of elements.

Challenge and get performance evaluation