Practice Summary - 3.8 | 3. Classification of Elements and Periodicity in Properties | CBSE 11 Chemistry Part 1
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Practice Questions

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Question 1

Easy

What does the atomic number represent?

💡 Hint: Look at the elements' arrangements in the Periodic Table.

Question 2

Easy

How do you explain the trend of atomic radius in the Periodic Table?

💡 Hint: Consider the effect of the nucleus on electrons.

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 indicates that two elements will have similar chemical properties?

  • Their atomic mass
  • Their atomic number
  • Their placement in the same group

💡 Hint: Think about how electrons influence reactivity.

Question 2

True or False: The atomic radius increases across a period.

  • True
  • False

💡 Hint: Reflect on how nuclear charge affects atomic size.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Analyze the link between reactivity patterns in the Periodic Table and electron configurations.

💡 Hint: Focus on how electron arrangement influences behavior.

Question 2

Discuss how predicting properties of newly discovered elements utilizes the existing trends in the Periodic Table.

💡 Hint: Reflect on Mendeleev's predictions regarding gaps in his table.

Challenge and get performance evaluation