Practice Exercises - 3.9 | 3. Classification of Elements and Periodicity in Properties | CBSE 11 Chemistry Part 1
K12 Students

Academics

AI-Powered learning for Grades 8–12, aligned with major Indian and international curricula.

Professionals

Professional Courses

Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.

Games

Interactive Games

Fun, engaging games to boost memory, math fluency, typing speed, and English skillsβ€”perfect for learners of all ages.

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is the atomic number?

πŸ’‘ Hint: It determines the element's identity.

Question 2

Easy

What element is placed below hydrogen in the Periodic Table?

πŸ’‘ 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

πŸ’‘ 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

πŸ’‘ 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.

πŸ’‘ 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.

πŸ’‘ Hint: Consider the benefit of knowing the true structure of elements.

Challenge and get performance evaluation