Practice Summary of Key Concepts - 6 | Unit 3: Periodicity | IB Grade 11: Chemistry
K12 Students

Academics

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

Academics
Professionals

Professional Courses

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

Professional Courses
Games

Interactive Games

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

games

6 - Summary of Key Concepts

Enroll to start learning

You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take mock test.

Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is Effective Nuclear Charge (Z_eff)?

πŸ’‘ Hint: Think about how inner electrons affect outer ones' experience.

Question 2

Easy

Describe the trend of atomic radius down a group.

πŸ’‘ Hint: Consider how electron shell addition impacts size.

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 happens to atomic radius as you move down a group?

  • Increases
  • Decreases
  • Stays the same
  • Varies randomly

πŸ’‘ Hint: Consider how many additional layers each time.

Question 2

Is ionization energy generally higher across a period?

  • True
  • False

πŸ’‘ Hint: Think about the forces acting on the electron.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Calculate the expected change in ionization energy from Group 1 through Group 17. Explain the trends observed.

πŸ’‘ Hint: Compare the effective nuclear charge as you list out the groups.

Question 2

Discuss why electron affinity is generally more exothermic as you move from left to right in the periodic table.

πŸ’‘ Hint: Consider how attractive forces play a role in electron interactions.

Challenge and get performance evaluation